Question

a. which equation represents the area of the sidewalk in square feet?
a) a = lw + 375
b) a = lw - 375
c) a = 375lw
d) a = l + w - 375
part b
b. solve the equation.
a = square feet

Explanation:

Step1: Assume area concepts

Let the area of the larger - region be \(A_{total}=lw\) and assume 375 is the area of a non - sidewalk part. The area of the sidewalk \(A\) is the difference between the total area and the non - sidewalk area.

Step2: Determine the formula

So, \(A = lw-375\).

For part B, since we don't have values for \(l\) and \(w\), we can't solve the equation to get a numerical value. If we assume the equation from part A (correct equation is \(A = lw - 375\)) is the one to solve, without values for \(l\) and \(w\), the answer remains in terms of \(l\) and \(w\).

Answer:

a. B) \(A = lw - 375\)
b. \(lw - 375\)