Question

Jackie made 28$ babysitting last week . her brother John made only 86% as much as she did. How much did john make

Answer 1

$24.08 I'm pretty sure.
You do this on a calculator.
You type in: 28 ÷ 86 and then the percent button which will give you the answer, for any question like that is the same formula.

Answer 2

`86 \% \ of \ 28\$= (86)/(100) *28= (2408)/(100)= \\ \\ =\boxed{24.08 \$ - earned \ John}`