How do i do this what do i do

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal