The pyramid shown has a square base that is 18 inches on each side. the slant height is 16 inches. what is the surface area of the pyramid?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)