Answer:
The length of fencing will be 
Step-by-step explanation:
Step 1
Find the dimensions of the rectangle
we know that
The area of a rectangle is equal to

In this problem we have

so
-----> equation A
-----> equation B
Substitute equation B in equation A

square root both sides

Find the value of b
-----> 
step 2
Find the length of fencing
The perimeter of a rectangle is equal to

we have


substitute

Answer:
x =132
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles
x = 46+86
x =132
Answer:
correct answer is 2
............................
You would change 30 percent to a decimal, so .3 is your multiplyer
21++82= 103 is the answer.