Solution - Compound interest (basic)

15576.59

15576.59

Step-by-step explanation

Use $A = P {(1 + r / n)}^{(n t)}$ with $P = 4, 501$ , $r = 6 %$ , $n = 2$ , $t = 21$ .

Compute period rate and exponent: $\frac{r}{n} = 0.03$ , $n t = 42$ , so the growth factor is $3.4606958935$ .

Multiply principal by growth factor: $4, 501$ × $3.4606958935$ = $15576.59$ .

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Compound interest appears in savings, loans, and investments. Understanding it builds strong financial literacy.