Hal’s mom gave him $15.00 on Monday morning to use on lunches. At his school, the school lunch costs $1.50, which he bought Monday through Thursday. On Friday, he decided to buy 4 slices of pizza instead of buying the school lunch. If the pizza costs $1.40 per slice, then how much of the money is left at the end of the school week?
3.40 liberty dollars of which he spends, also 1.40 for pizza slice when his whole meal costs 1.50 is a scam man