So you want to find how much y=8 and how much x=3 so to do that you multipy 8x3 witch =24 so 8x3=24 ope this helps you.
Percent measn parts out of 100
105%=105/100=21/20
If you connect the hemmitrix to the demitrix you always get the right answer.
Neither of the graphs in the picture is a function
To be a function it needs to pass the vertical line test, which both of them fail.