You purchase a car using a $20,000 loan with a 5% simple interest rate. (a) how much interest do u pay on your loan if you pay off the loan in 4 years ? show your work (b) how much interest do u pay on your loan if you pay off the loan in 2 years? show your work (c) how much interest do u save by paying the loan off in 2 years instead of 4? show your workme out

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.