Leah is buying curtains for her bedroom window. She wants the curtains to hang from the top of the window to the floor. The window is 4 feet high. The bottom of the window is 2 1/2 feet above the floor. What curtain length should Leah buy?

a) 72 inches
b) 78 inches
c) 84 inches
d) 104 inches

78

1x1=1 stupid

I know the answer is 78 but how do you get 48 and 30?

78

I know how to get 48 but where do you get 30?

48 + 30 = ?

48 plus 30 equals 78