If the area of the trapezoid shown is 200 square feet, what is the height h of the trapezoid?

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)