The PTO is hosting a donut and coffee day at the shcool. Each box of donuts and costs $9.00 and each cup of coffee cost $0.50. The PTO spent $63 on the donuts and on the coffee.
What are the unknown quantities in this problem? Select all that apply.
The school where the donut and coffee day will take place.
The cost of each box of donuts.
The cost of each cup of coffee.
The number of boxes of donuts the PTO bought.
The number of cups of coffee the PTO bought.