Mr. Crawford is ordering pizzas and breadsticks for a school pizza party and has a budget of $81, but no more. An order of breadsticks costs $7 and a pepperoni pizza costs $13. 1. Write an inequality that represents the above situation. ( answer7x+13y-$81)

2.Is it acceptable to spend exactly 81? What are some possible combinations of outcomes that equal exactly 81? Where do all of the outcomes that total 81 lie on a graph ?