Carissa takes a square piece of cardboard and cuts 5 in. by 5 in. squares out of each corner. she folds the sides up to make a box without a top.

what equation can carissa use to determine the volume of the box, where x is the side length of the original piece of cardboard?

The volume of the new cardboard is cubic inches.

Step-by-step explanation:

Let the sides of the original square cardboard = x inches

Since, Carissa cuts 5 in. by 5 in. squared out of each corner.

We have that,

Length of new cardboard = inches

Width of new cardboard = inches

Height of the new cardboard = 5 inches

So, Volume of the new cardboard = Length × Width × Height

i.e. Volume of the new cardboard =

i.e. Volume of the new cardboard = cubic inches.

Thus, the volume of the new cardboard is cubic inches.

a is the right answer