Work out an expression, in terms of x, for the perimeter of the shape.
Simplify your answer.

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21

Rewrite the expression in z to the n power. the expression i was given is: 1 over z to the negative 1 half power.