Which number line shows a point that best represents the value of v215?

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x