Arectangle has a length of 4 feet and width of 13 inches. what is the perimeter of the rectangle?

In a rectangle, opposite sides are congruent, which means they will have the same width/length.
Here, there are two sides with 4 feet and two with 13 inches.
Let's change that so they are both in inches.
There are 12 inches in a foot, so 4*12=48.
To find the perimeter of a rectangle, you need to add up all the sides of the figure.

48 + 48 + 13 + 13 = 122

The perimeter of the rectangle is 122 inches.