Solution - Compound interest (basic)

25013.36

25013.36

Step-by-step explanation

Use $A = P {(1 + r / n)}^{(n t)}$ with $P = 18, 931$ , $r = 4 %$ , $n = 4$ , $t = 7$ .

Compute period rate and exponent: $\frac{r}{n} = 0.01$ , $n t = 28$ , so the growth factor is $1.3212909669$ .

Multiply principal by growth factor: $18, 931$ × $1.3212909669$ = $25013.36$ .

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