sally brought three dresses at the store and they were $80 each. the store had a 20% off sale. how much did sally pay?

What is the value of x in the equation7x+2y=48 when y=3

Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?

Round each decimal to the nearest hundredth