Stephanie just redecorated her bedroom. she wants to paint her door green but needs to know the surface area of the door to see if she has enough paint.

what is the surface area of the door?

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.