Firoelle

The bike was sold on the 19th day 359.70=750(0.96)^n-1 divide both sides by 750 0.4796=0.96^n-1 now just guess and check for n 0.4796=0.96^20-1 0.4796=0.4604 nope 0.4796=0.96^19-1 0.4796=4796 yep it works n=19 so the bike was sold on the 19th day of the s...