50 points. Question below. Anwser Asap

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

For what value of x does 4x = (1/8) x + 5?

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.