Benny spent half of his allowance going to the movies. he washed the family car and earned nine dollars. what is his allowance if he ended with seventeen dollars?

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?

Which two undefined geometric terms always describe figures with no beginning or end?