me to accumulate a given sum Personal Finance Problem Manuel Rios wishes to determine how long it will take an initial deposit of $$9,000$ to double.

If Manuel earns $8\%$ annual interest on the deposit, how long will it take for him to double his money?

How long will it take if he earns only $5\%$ annual interest?

How long will it take if he can earn $10\%$ annual interest?

Reviewing your findings in parts a$,$ b$,$ and c$,$ indicate what relationship exists between the interest rate and the amount of time it will take Manuel to double his money.