Hal spent half the money in his account and then deposited $60. He now has $325. How much money did Hal have in the beginning

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Ten times the square of a non-zero number is eqaul to ninety times the number

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.