What is equivalent to this statement: 4 is 80% of x

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 table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

Maria heard on the radio that the high temperature that day would be to determine the temperature in degrees celsius, she used the formula , where c is the temperature in degrees celsius and f is the temperature in degrees fahrenheit.