A group of 100 randomly selected Z-Marketing employees were asked what their most common form of transportation is. The bar graph below shows the results of the survey. There are 500 employees at Z-Marketing.

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.