The expressions that could be used to determine the total area of the rectangle are
20(7.5 + x)
20x + 150
The correct options are the third and fifth options
Area of rectangle
From the question, we are to determine which expressions could be used to determine the total area of the rectangle
Area of a rectangle is given by the formula,
A = l ×w
Where A is the area
l is the length
and w is the width
From the given diagram,
l = 7.5ft + xft
w = 20 ft
Thus,
Total area of the rectangle = (7.5 + x) × 20
Total area of the rectangle = 20(7.5 + x)
This expression can be used to determine the total area of the rectangle
Also,
If we simplify the expression further
20(7.5 + x)
20×7.5 + 20x
150 + 20x
= 20x + 150
∴ 20x + 150 could also be used to determine the total area of the rectangle
Hence, the expressions that could be used to determine the total area of the rectangle are
20(7.5 + x)
20x + 150
The correct options are the third and fifth options
Learn more on Calculating area of a rectangle here: https://brainly.com/question/5015825
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