With #4, its referring to #3. with my nephew who is young.

The answer is 1/4

If you'd like an explantation, I will add it.

Hope this helped =D
(I added how many 1/8 there were and how many 1/4 there were)

3/4 - 4/8

Simplify 4/8, which gives you 1/2

Then find the LCD (Least common denominator which is 4

then subtract

(I cant add a picture of how i did because my camera is blurry on my computer

Ithink you're supposed to multiply 12.50 which is how much he makes per hour and then multiply it by each number then add whats left togrther and there's your answer