P=20 this is because you have to get 2 on each side 7.2/3.6 =2 so 20/10=2 2=2
So make a square and then you an answer from (0,1) to (4,3) the slope is 1/2 in simplest form, but for a more accurate answer a calculator.
The answer to 75 squared is 5,625.
95/100 = 0.95 <== if she missed 5 out of 95, then she got 95 out of 100