Joe is buying wire to rewire something in his home. He measured the length of wire needed as 32.25 inches. The actual length is 28.75 inches. What is the approximate percent error?

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.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.