The Cooking Club made some pies to sell during lunch to raise money for a fieldtrip. The cafeteria helped by donating 5 pies to the club. Each pie was then into 8 pieces and sold. There were a total of 64 pieces to sell. How many pies did the club make?

An incoming airplane is x miles due north from the control tower at an airport. a second incoming airplane is y miles due east of the same control tower. the shortest distance between the two airplanes is z miles. which of the following functions would best model the situation above?