Four friends went to the fair. Each paid $6.50 to enter and all went to x rides, paying $1.25 per person for each ride. Which expression shows how much money they paid in all? Plx explain and show work.
A. 1.25x + 4(6.50)
B. 6.50x + 4(1.25)
C. 4(1.25 + 6.50x)
D. 4(6.50 + 1.25x)