Answer: x=9
Step-by-step explanation:
I made an equation by putting both shapes equal each other since they have the same perimeter and I simplified the equation to end up with 9 as the value of x.
Answer:

Step-by-step explanation:
standart special right triangle with some square root operations
let the triangle has side a, 2a, and a√3.
since a√3 = 20, then 
Answer: I think B is answer to ur question
Step-by-step explanation:
A percentage is a comparison to 100, so
250% = 250/100 = 25/10 = 5/2
5/2 = 2 1/2 or 2.5
Answer:
your y intercept is 0,0 i'm pretty sure. And the slope is 1
Step-by-step explanation: