Felipe is planning a party. He has $50.00 to spend on sandwiches that cost $2.50 per person, $25.00 to spend on drinks that cost $1.50 per person, and $25.00 to spend on gift bags that cost $3.00 per person. Which expression could be used to show the amount of money he will have left over if x people attend the party?
50 + 7 x
100 minus 7 x
2.50 x + 1.50 x + 3.00 x
100 minus (2.50 x minus 1.50 x minus 3.00 x)