Amusician plans to preform 5 selections. in how many ways can the musician arrange the musical selections?
a. 120
b. 25
c. 720
d. 5

Which statement about perfect cubes is true

1- 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.2- 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 the first question?

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?