Answer
a. $768.05$
b. $769.2$
c. $769.8$
d. $770.4$
Work Step by Step
We use the formula for compounded interest
$A(t)=P(1+\frac{r}{n})^{nt}$
with $P=\$600$
$r=0.025$
$t=10$
a. $n=1$
$A(10)=600(1+\frac{0.025}{1})^{10} \approx 768.05$
b. $n=2$
$A(10)=600(1+\frac{0.025}{2})^{10(2)} \approx 769.2$
c. $n=4$
$A(10)=600(1+\frac{0.025}{4})^{10(4)} \approx 769.8$
d. Continuously
$A(10)=600e^{(0.025)10} \approx 770.4$