To write eight hundred fifty-four and ninety-six hundredths is like this: (If you want the answer just scroll down.) Eight hundred= 800 Fifty-four= 54 and= . <-- Decimal point Ninety-six hundredths= 96
TL;DR version: Eight hundred fifty-four and ninety-six hundredths is 854.96
in your equation it says (y=32x) which 32 will mean how much he is charging for each skateboard, x will be how many he sells, and y would be how much he makes from selling them. So if he sold 2 skateboards you would do