plz i have no idea what to do a store is having a sale on jelly beans and trail mix. for 5 pounds of jelly beans and 3 pounds of trail mix, the total cost is $17. for 7 pounds of jelly beans and 9 pounds of trail mix, the total cost is 37 . find the cost for each pound of jelly beans and each pound of trail mix.

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.