Suppose that ($ 1,000) is invested at (7 %) interest compounded monthly. Use the formula [ A=Pleft(1+frac{r}{n}ight)^{n

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Suppose that \(\$ 1,000\) is invested at \(7 \%\) interest compounded monthly. Use the formula

\[ A=P\left(1+\frac{r}{n}ight)^{n t}\]

a. How long (to the nearest month) before the value is \(\$ 1,250\) ?

b. How long (to the nearest month) before the money doubles?

c. What is the interest rate (compounded monthly and rounded to the nearest percent) if the money doubles in 5 years?

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