Two cubes are shown. If the side length of each cube is 3 feet, what is the total volume of the two cubes?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?