Answer:
A) x=3
Step-by-step explanation:
I guess it's : 
![x=\sqrt[3]{27}](https://tex.z-dn.net/?f=x%3D%5Csqrt%5B3%5D%7B27%7D)
X = measure of each of the legs
"perimeter is 8 more than 2 times one of the legs" ---> P = 2x+8
P = 28 is the given perimeter
So,
P = 2x+8
28 = 2x+8
2x+8 = 28
2x = 20
x = 10
If x = 10, then the two legs add up to x+x = 10+10 = 20
Leaving P-20 = 28-20 = 8 inches left over for the base
You have the correct answer (choice D, 8 inches) though your steps are a bit confusing at some parts. Such as the part where you wrote 2x = 10 twice. I think I know what you were trying to say.
Answer:
(-4-4)/(-3-21)= -8/-24= 1/3
y - 4 = 1/3(x - 21)
y - 4 = (1/3)x - 7
y = (1/3)x - 3
The root of 36 is 6 and the root of 25 is 5 so is 6/5
The answer would be c.
Multiplying by 1/4 would be the same as dividing by 4.
