Answer:
34 pizzas, profit of $4
Explanation:
They will make a profit of $3 a pizza (7-4=3) and they need to have enough pizzas to cover the $100 charge. You need to divide 100 by 3 which is 33.3333 repeating. You have to round up which is 34. Check your work by doing 100+ 4x34=234 and 7x34=238. Since 7x34 has a greater answer, your work is correct, and the profit is the difference between the two equations