I need help with these ASAP, the assignment is due today and plz explain.

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?

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2