The side of a new building will be covered in vinyl siding as shown in the diagram. The diagram is not drawn to scale.
how many square feet of siding are needed?

A. 247.5
B. 283.5
C. 387
D. 483

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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.