Answer:
45 or positive 45
Step-by-step explanation:
The expressions for the width, W, and area, A, of the rectangle in terms of L are:
- W =
- L - A =

The expression for the perimeter of a rectangle is given as:
P = 2(L + W)
where L is its length and W its width
a. Given that the perimeter of the rectangle is 13 feet, then;
13 = 2(L + W)
divide through by 2
= L + W
So that;
W =
- L
The required formula for the width as a function of L is: W =
- L
b. Area of a rectangle can be expressed as;
A = L * W
substitute the expression for width in that of area to have
A = L * (
- L)
=
L - 
A = 
The expression for the area A is: A = 
Visit: brainly.com/question/10452031
Answer:
216 seats are filled
Step-by-step explanation:
240-90%=24
24+216=240
thats how you know 216 is correct
Answer:
..........
Step-by-step explanation: