Bananas cost $3 a bunch and apples cost $0.50 each. if b represents the number of bunches of bananas and a represents the number of apples, which of the following expressions represents the total cost?

What is the definition of exponential decay?

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

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.