Solve the Problem. -A Rectangular Piece of Cardboard Measuring 28 Inches by 45

Multiple Choice

Solve the problem.
-A rectangular piece of cardboard measuring 28 inches by 45 inches is to be made into a box with an open top by cutting equal-size squares from each corner and folding up the flaps. If the side length of each such square is x
Inches, for what value of x will the volume be a maximum? If necessary, round to the nearest hundredth.

A) 18.73 in.
B) 22.8 in.
C) 37.45 in.
D) 5.61 in.