You set up a proportion. first, put the percent so if it's 30 percent, it would be 30 over 100. Then, set up the second part. is over of.
I think the answer would be $9.46 left as a tip for the waiter.
Answer:
Following are the responses to the given question:
Step-by-step explanation:

8/36
Divide the numerator and the denominator by 4
2/9
That's the simplest form
Have an awesome day! :)
Answer:
AB=8
Step-by-step explanation:
First, you get figure out x. Since both sides are equal, use the equation x+3=2x-2, then subtract x from both sides, 3=x-2, and then add 2 to both sides, x=5. Then use one of the equations to get the length of the side, I used x+3=8, which is your answer.
(hope this helps :P)