Home › Certifications › High school subjects › High School Economics › Personal Finance and Economic Decision-Making

Personal Finance and Economic Decision-Making — High School Economics practice questions

18 multiple-choice questions and 15 flashcards on Personal Finance and Economic Decision-Making, about 8% of the High School Economics bank. Every one carries a written rationale.

Written and maintained by the CoStudy team · last updated 2026-10-02 · how we write and review questions

What this chapter covers

Personal Finance and Economic Decision-Making is one of 11 chapters in CoStudy's High School Economics bank, and it holds 18 of the bank's 225 multiple-choice questions — roughly 8% of the total. That proportion is not arbitrary: chapters follow the certifying body's published exam outline, and the number of questions in each is set by that domain's published weight, so the share of your practice time this chapter takes matches the share of the real exam it accounts for.

Studying by chapter is worth doing once you have a diagnostic score. A single overall percentage tells you whether you are close; it does not tell you which domain is dragging. Working a weak chapter in isolation, and re-testing it in isolation, is the fastest way to move a score that has stalled — and it is why the mock exams in CoStudy report by domain rather than as one number.

Free Personal Finance and Economic Decision-Making practice questions

8 questions drawn from this chapter, with the full rationale shown — the controlling principle behind the right answer, and why each wrong option tempts and fails.

The FICA deduction on a paycheck pays for:

  1. federal income tax
  2. health insurance premiums
  3. Social Security and Medicare
  4. state sales tax

Answer: C — Social Security and Medicare

C) Correct — Employees and employers each pay a share. A) Is withheld separately. B) Are separate deductions. D) Is paid when you buy goods.

Experts generally recommend an emergency fund that covers:

  1. 3 to 6 months of expenses
  2. 1 week of expenses
  3. 5 years of expenses
  4. one month of wants

Answer: A — 3 to 6 months of expenses

A) Correct — It protects against job loss or surprise bills. B) Too small for most emergencies. C) Far more than typically advised. D) Should cover essential expenses.

An index fund helps reduce risk because it:

  1. guarantees a profit
  2. invests in a single company
  3. is insured by the FDIC
  4. holds many companies at once

Answer: D — holds many companies at once

D) Correct — It is a low-cost way to diversify. A) No investment is guaranteed. B) Would increase risk. C) Investments are not FDIC-insured.

The APR on a loan tells you:

  1. the loan's total amount
  2. your monthly payment
  3. your credit score
  4. the yearly cost of borrowing

Answer: D — the yearly cost of borrowing

D) Correct — It includes interest and some fees. A) Is the principal. B) Depends on APR, principal, and term. C) Is a separate number.

With a subsidized federal student loan:

  1. interest builds up while you are still in school
  2. you never have to repay it
  3. the government covers interest during school
  4. the interest rate is 25%

Answer: C — the government covers interest during school

C) Correct — Unsubsidized loans build interest during school. A) Describes unsubsidized loans. B) Describes a grant. D) Federal loan rates are far lower.

Paying only the minimum on a credit card balance usually means:

  1. the balance is paid off quickly
  2. no interest is charged
  3. your credit limit is raised
  4. paying much more in interest over time

Answer: D — paying much more in interest over time

D) Correct — High rates compound on the remaining balance. A) It can take years. B) Interest is charged on the unpaid balance. C) Is not a result of minimum payments.

Starting to save for retirement at 22 instead of 32 matters mainly because:

  1. interest rates are higher for young people
  2. compound interest has more time to grow
  3. taxes are lower at 22
  4. the money is insured longer

Answer: B — compound interest has more time to grow

B) Correct — Earnings build on earlier earnings. A) Rates do not depend on age. C) Is not the main reason. D) Insurance is not the reason.

Gross income is ___, while net income is ___.

  1. take-home pay; pay before deductions
  2. pay before deductions; take-home pay
  3. yearly pay; monthly pay
  4. wages; interest income

Answer: B — pay before deductions; take-home pay

B) Correct — Taxes and other deductions separate the two. A) Reverses the two. C) Both can be yearly or monthly. D) Both include all income.

Personal Finance and Economic Decision-Making flashcards

4 cards from the 15 in this chapter.

Why is paying off credit card debt a high priority?

Average credit card interest rates (~20%+ APR) compound rapidly and exceed nearly all investment returns.

Worked example: You deposit $2,500 at an annual interest rate of 6%, compounded once per year. How much will you have after 10 years with no additional deposits or withdrawals?

Step 1 — Compound interest formula: A = P × (1 + r)^t, where P = principal, r = annual rate (decimal), t = years. Step 2 — Substitute: P = 2,500; r = 0.06; t = 10. So A = 2,500 × (1.06)^10. Step 3 — Compute (1.06)^10. Use exponent shortcut or rule-of-72 estimate: at 6%, money doubles roughly every 12 years, so 10 years is a bit less than doubling. Precise: (1.06)^10 ≈ 1.7908. Step 4 — A ≈ 2,500 × 1.7908 ≈ $4,477. Step 5 — Interest earned = A − P ≈ $4,477 − $2,500 = $1,977. Lesson: thanks to compounding, ~$2,500 nearly doubles in a decade at a modest 6% rate.

What is insurance?

A contract that transfers risk to an insurer in exchange for a premium — pays out for covered losses.

What is a budget?

A plan for income and expenses over a period — helps track spending, save, and meet financial goals.

Practise the full chapter

These are a sample. The full Personal Finance and Economic Decision-Making chapter runs 33 items with per-chapter progress tracking, on the web and in the iOS app.

Open High School Economics in CoStudy →

Other High School Economics chapters

All High School Economics practice questions →