if John makes $55 in 2 hours how much Would he make working 8 hours ?

You can use a rule of three to find the answer to this question.
$55------>2
x---------->8
The value of x, that is the amount he will do in 8 hours, is:
[tex]x=\frac{55\cdot8}{2}=220[/tex]He will make $220 in 8 hours.