Z² =31 round z² to the nearest ten

There are 4 cups in a quart and 4 quarts in a ganon.jug of water? . how many cups are in a 5-gallon jug of water?

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?