Solution - Compound interest (basic)

122543.44

122543.44

Step-by-step explanation

Use $A = P {(1 + r / n)}^{(n t)}$ with $P = 8, 736$ , $r = 9 %$ , $n = 2$ , $t = 30$ .

Compute period rate and exponent: $\frac{r}{n} = 0.045$ , $n t = 60$ , so the growth factor is $14.0274079289$ .

Multiply principal by growth factor: $8, 736$ × $14.0274079289$ = $122543.44$ .

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