Subtract the money they already raised from the money they needed to raise That gives you $247.85 247.85/16 = 15.490625 That estimates to $15.49 Hope this helps! :)
So for each person, the carter charges $19.25. With $350, you can have 350/19.25 people. This make 18.18 people. You can't have 0.18 of a person, so you can only have 18 people at your party.