Question

4 mr. berns wants to build a fence around his vegetable garden.
a. write an expression to find the perimeter of the fence.
b. evaluate the expression when x = 5.

Explanation:

Step1: Sum all side lengths

Perimeter = $(x+2)+(x+1)+(x+2)+(x+1)$

Step2: Combine like terms

Perimeter = $x+x+x+x + 2+1+2+1 = 4x+6$

Step3: Substitute $x=5$ into expression

Perimeter = $4(5)+6$

Step4: Calculate the final value

Perimeter = $20+6=26$

Answer:

a. $4x + 6$
b. $26$