Evaluate X^3 when X= 5

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible