I have a 3 part question that I have the answers for but I am still having issues understanding it. Looking for help with the explanation / steps on how you would get the answer.

Question

Question
1) The width of a rectangular field is 3h yards and it's length is 3 yards longer than the width. The field has a fence around it's perimeter with a gate 4 yards wide.

A) Write an expression for the perimeter of the rectangular field in terms of h, excluding the width of the gate.

Answer
(12 h + 2 ) yards

B) It costs $28 per yard to fence the field, excluding the gate. Write an expression that represents the cost of fencing the field.

Answer
The cost is 28 (12h + 2 ) dollars

C) If h = 5, find the cost of the fencing, excluding the gate.

Answer
The cost is $1,736

Answer 1

width ---- 3h
length ---- 3h+3
perimeter = 2(3h) + 2(3h+3) - 4
= 6h + 6h + 6 - 4
= 12h +2

you are correct

b) correct 28(12h+2)
=

c) cost = 28(12h+2)
= 28(60+2) = 1736
you are correct.

good job

Answer 2

Thank you