If the volume of a cone is 30 cubic feet and it has a base area of 15 square feet, what is the height of the cone?

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?

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?