The carpet in the school library needs to be replaced. The dimensions of the library floor or shell each square foot of cart bit cost $1.25. What is the total cost of the new carpet for the library

To find the cost, we must:

First, find the area of the carper. It can be found dividing the carper into a rectangle and a right triangle.Then, with the area, in square foot, we have the cost per square foot, which makes it possible to find the total cost.

Doing this, we get that the cost is: $3,815, and the correct option is B.

Carpet:

The carpet can be divided into:

A rectangle of dimensions 56 ft and 38 ft.A right triangle of legs 71 - 38 = 33 ft and 56 ft.

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Area of the rectangle:

The area of a rectangle of dimensions l and w is given by:

In this question, the dimensions are l = 56 ft, w = 38 ft, so the area, in square feet, is:

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Area of a right triangle:

The area of a right triangle of legs a and b is given by:

In this question, the legs are a = 56, b = 38, so the area, in square feet, is:

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Total area:

The total area is the sum of the area of the rectangle with the area of the right triangle, thus:

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Cost:

Each square foot costs $1.25.

There are 3,052 square feet. So, the cost is:

Thus, the cost is $3,815, and the correct option is B.

A similar question is found at

The graph isn’t that clear

Really long apparently