What system of inequalities would you use to solve the problem below? You must buy cupcakes and pizza for a party. Each cupcake costs $2, and each pizza pie costs $10. You know that you need at least 6 pizzas so that each person can have at least 2 slices of pizza. In addition, you cannot spend more than $90. If you want to figure out how many cupcakes and pizza ples you can buy, what system of inequalities would you write?