Question

Help with 1 and 3 if possible show work

Answer 1

1)


`\bf \qquad \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+r\right)^(t) \quad \begin{cases} A=\textit{compounded amount}\\ P=\textit{original amount deposited}\to &\$600\\ r=rate\to 1.6\%\to (1.6)/(100)\to &0.016\\ t=years\to &2 \end{cases} \\\\\\ A=600\left(1+0.016\right)^(2)`

3)


`\bf V(t)=1350(1.017)^t\implies \begin{array}{llllll} V(t)&=&1350(&1 +& 0.017&)^t\\ A&=&P(&1+&\boxed{r}&)^t \end{array}`

notice the rate "r"... now, is in decimal format, as you saw on 1) is just r/100 so 1.6% was really 1.6/100 or 0.016 anyhow

to get the percentage form, just multiply it by 100