Question 29 • Financial Math
Use P = 100, r = 0.05, n = 12, and t = 30 in the annuity formula. There are 12 × 30 = 360 monthly payments, and the monthly interest rate is 0.05 ÷ 12. Substituting gives 100 × ((1 + 0.05/12)^360 − 1) ÷ (0.05/12) ≈ $83,225.86. The future value is choice B, $83,225.86.
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