Answer:
Option C. 4(20-16y): Each side measures 20-16y units.
Step-by-step explanation:
we know that
The perimeter of a square is equal to

where
b is the length side of the square
we have

substitute the given value in the formula

solve for b
Divide by 4 both sides

Rewrite the expression

<em>Alternative Method</em>
we have

Factor 4

so
Each side measures (20-16y) units.
Answer:
Im really sprry i do not know tgis but good luck!!
Solve the absolute value equation.
First subtract 5 from both sides.
|x|+5=18
|x|=13
If the absolute value of x is 13 that x equals 13 and -13. Absolute value means distance from 0.
x=13,-13