The wind chill equations I have found are more complicated than that.
7
30-7=23
7=g
Solve the equaton backwards to get the answer
84 x .70 = $58.80
Or if you want to do it the long way you can calculate the actual discount (your savings from this purchase first then subtract it from the original price of $84. It`s just easier to figure out what is left (which is 70% of $84).
Cant see the rest of the question ;-;
