Work shown above! Answer would be A!
Answer:
I'm pretty sure Its D i think-
Answer:
for the number 13
Step-by-step explanation:

by Pythagoras theorem
x= √81+36
x= √117
punch square root of 117 with a calculator, I don't have one now
No actually you can just multiply both sides of the equation by 2 and get y-4=20. then add 4 to both sides to get y=24.