Simplify 3x ^ 2 - 4 +2x -1 + x^ 2 then evaluate for x = - 1

On her first stroke, maya hit a golf ball 146 yards, 2 feet, 11 inches. on her second stroke, she hit it 163 yards, 1 foot, 2 inches. how far did the ball go all together? convert the answer to larger units whenever possible.

If the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.

You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?