Solution - Compound interest (basic)

79243.83

79243.83

Step-by-step explanation

Use $A = P {(1 + r / n)}^{(n t)}$ with $P = 12, 957$ , $r = 10 %$ , $n = 1$ , $t = 19$ .

Compute period rate and exponent: $\frac{r}{n} = 0.1$ , $n t = 19$ , so the growth factor is $6.1159090448$ .

Multiply principal by growth factor: $12, 957$ × $6.1159090448$ = $79243.83$ .

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