Which is the area of a rectangle with a length of 21 feet and a width of 15 feet

Step-by-step explanation:

In order to calculate the area of a rectangle, you can use the following formula:

Where "l" is the lenght of the rectangle and "w" is the width.

In this case you know that this rectangle has a length of 21 feet and a width of 15 feet. Then:

Therefore, you can substitute these values into the formula, getting that the area of this rectangle is:

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.