What was Mitchell's median time in the 100-yard dash on IXL

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

(60 points) explain this in detail