Afootball team lost 9 yards on first down and 4 yards on second down. it gained 5 yards on third down. how many yards does it need to gain on fourth down to have a 10-yard gain from its starting position? a. 2 yd b. 8 yd c. 13 yd d. 18 yd

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.