Molly ran 2/3 of a mile in 8 minutes . if molly runs at that speed , how long will it take her to run one mile

Use the function nest to evaluate p(x) = 1 + x + · · · + x50 at x = 1.00001. (use the matlab ones command to save typing.) find the error of the computation by comparing with the equivalent expression q(x) = (x51 − 1)/(x − 1).

What percent of the circle below is shaded?

Don't know how to find x given these segment lengths