It is a Saturday morning, and Jeremy has discovered he has a leak coming from the water heater in his attic. Since plumbers charge extra to come out on weekends. Jeremy is
planning to use buckets to catch the dripping water. Ile places a bucket under the drip and
steps outside to walk the dog. In half an hour, the bucket is 1/5 of the way full.

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.