What is (−7)(−2)+(−15÷3)

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

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.

Is a square always, sometimes, or never a parallelogram