A normal car can accelerate at a rate of about 10 mph every second. Imagine that the car could maintain this rate of acceleration for half an hour. How fast would it be going after that half hour?

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.