Please show all work in excel! Will upvote once both answered thank you!

1- You want to invest an amount of money today and receive back twice (double) that amount in the future. You expect to earn 8 percent interest. Approximately how long must you wait for your investment to double in value?

		7 years
		8 years
		not enough information to calculate
		6 years
		9 years

2-

1. You just won the lottery! As your prize you will receive $1,200 a month for 100 months. If you can earn 8% compounded monthly on your money, what is this prize worth to you today?

   		179,938
   		120,000
   		32,981.85
   		87,380.23
   		14,993