A florist has to pay $7.50 each time a customer chooses a competitor for the delivery of flowers. Which expression shows the amount that the florist earns if p people use a competitor for delivery, and the company makes $320.00 before any payment is made to their competitors? 320 minus 7.50 p
320 + 7.50 p
7.50 p minus 320
7.50 p + 320