3,9,7,21,19,57.55,165 what is the last number?

Ruby and chung work together ruby lives 13 1/2 miles from work chung lives 2 1/6 miles beyond ruby how far from work does chung live

Point $(x,y)$ is randomly picked from the rectangular region with vertices at $(0,,,2010),$ and $(0,2010)$. what is the probability that $x > 7y$? express your answer as a common fraction.

What is the vertex form of f(x) = x2 + 6x + 3