Susie and Sara traveled together by car and shared the driving. Susie drove for 6.25 hours then Sara gave Susie a break, driving for 2.25 hours. Their total distance is modeled by the expression below. 64(6.25) + 75(2.25) What does the 6.25 in 64(6.25) represent? What about the 64? What does the 2.25 in 75(2.25 represent? What about the 75?