Which expression is equivalent to 7/2h-3(5h-1/2)? explain a) -23/2h+3/2 b) -23/2h-3/2 c) 37/2h+3/2 d)37/2h-3/2

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)