Solve for x:  
1/2x + 10 = -2 + x

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?

Classify the following triangle check all that apply

Find the value of x for which abcd must be a parallelogram -9-6x x-30