Aparking meter contains $3.20 in nickels and quarters. there are 3 times as many nickels as quarters. how many of each type are in the parking meter

note: you must solve using system of equations which means there should be two equations in the solving process

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.