James bought a new TV. He made an initial payment of $40 to the store, and he

will pay $20 each month until the TV is paid off. Which equation represents the

relationship between x, the number of payments James has made, and y, the

total amount that James has paid the store?

-

A: y-40x+20

B: y-20

C: y - 20x-40

D: y-20x+40