Aparking garage charges $3 for each of the first three hours. after three hours, the charge is $7 an hour. what is the total cost for five hours of parking? which strategy that would solve this word problem? a. write the equation (3 x $3) + (5 x $7) = total cost of five hours. b. write the equation (3 x $3) + (2 x $7) = total cost of five hours. c. write the equation (3 x $3) x (5 x $7) = total cost of five hours. d. write the equation (5 x $3) – (3 x $7) = total cost of five hours.