What are the coordinates of these two equations? 2x-2y=0 and 3x+y=8

What is the solution of sqrt x+2-15=-3

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost