This composite figure has been divided into three rectangles. What is the area of this composite figure

Given:

A composite shape consisting of three rectangles with different lengths and widths.

To find:

The area of the composite shape.

Solution:

To find the area of the composite shape we must add the areas of all the three rectangles.

The upper rectangle has a length of 8 inches and a width of 4 inches.

The area of a rectangle

The area of the upper rectangle in².

The middle rectangle has a length of inches and a width of inches.

The area of the middle rectangle in².

The lower rectangle has a length of 8 inches and a width of 1.5 inches.

The area of the lower rectangle in².

The area of the composite shape in².

The composite shape has an area of 62 in² which is option 3.

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)