If h stands for hours then we need to find out how many hours he tutored.To get $28 we would need to multiply 7 x 4 which would mean that he tutored for 7 hours. The equation would be 7 x 4 = $28 Hope This Helps!
So first you would add the to numbers 56+84 to get 140. then you would put it in fraction form of males to total people (56/140). Then by simplifying you would get the answer of 2/5!
