1) Tony began putting together a rectangular puzzle. He completed the top edge and left side of the puzzle, as shown below. Each piece is a square that has a side length of 212centimeters. What is the total area, in square centimeters, of the completed puzzle?

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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.