Calculate the perimeter of this shape in millimeters. Please explain step by step to get marked!

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?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

What is 1.5% of 120 or what number is 1.5% of 120