The equation M(x,y) = 56 + 0.5x -0.7y gives the mileage (in mpg) of a new car as a function of tire pressure x (in psi) and speed y (in mph). Find M(31,48) (include the appropriate units) and explain what it means. M(31,48) = (Type an integer or a decimal.) Explain what the answer in the previous step means. Select the correct choice below and fill in the answer boxes within your choice. (Type integers or decimals.) O A. Mileage is mpg at a tire pressure of psi and a speed of mph. B. Increasing the speed by one mph and maintaining a tire pressure of psi will increase mileage by mpg. C. Increasing the tire pressure by one psi and maintaining a speed of psi will decrease mileage by mpg. O D. Increasing the speed by one mph and maintaining a tire pressure of psi will increase mileage by mpg. O E. Increasing the tire pressure by one psi and maintaining a speed of mph will increase mileage by mpg. Next rces DUE AT 9:00 AM Score: 0 of co attempts Completed Assignments (0) No completed assignments during the selected timeframe