Melinda rents paddle boats down at the pier. she uses 5.5 feet of nylon rope to tie off each boat. she started with 80 feet of rope. after securing all the boats, she was left with more than 3 feet of rope. how many boats did melinda tie off?

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.