You are saving to buy a $177,000 house. There are two competing banks in your area, both offering certificates of deposit yielding 6.2 percent.

a.	How long will it take your initial $94,000 investment to reach the desired level at First Bank, which pays simple interest? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)
b.	How long will it take your initial $94,000 investment to reach the desired level at Second Bank, which compounds interest monthly? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)

I want to know how to do these steps on he calculator. Thanks.