Mr. Gomez’s students need to earn a total of 100 points for a class reward. The class earned 42 points in March and 24 points in April.
Which is the best estimate for the number of points the class needs in May to be sure they will earn the reward?

a. 30 points
b. 40 points
c. 60 points
d. 70 points

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.