Pls graph this i really need this hurry pls

answer:

step-by-step explanation:

let's first get rid of the feet and turn everything into inches.

1 foot = 12 inches.

9 * 12 + 5.5 = 113.5

1 * 12 + 10.5 = 22.5

we need a rod that's 113.5 inches long, each section is 22.5 inches.

22.5x = 113.5 simple division here to get 5.

we now do 22.5 * 5 to get 112.5 a little bit off aren't we? so we can just add 1 to how many poles there will be making it 6.

22.5 * 6 = 135 now we are over.

we would need 6 poles which add up to 135 inches.

we can now do 135 - 113.5 to get 21.5 inches left which are left.

answer:

step-by-step explanation:

if you subtract one equation from the other:

8x + 4y = 16

-8x - 2y = -8

2y = 8

y=4

answer is basically a straight horizontal line of y=4 (x can be any number).

answer:

132.73

step-by-step explanation:

the equation for area of a circle is a=πr*2

if your diameter is 13 simply take half of that and plug into the equation

π(6.5)*2 which when put into a calculator comes out to 132.732289