Can anyone solve this using the "completing the square" method? (or something similar) Solve for X

Giving 100 points asap bev has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. calculate the area of the polygon. be sure to show all your work and explain your answer.

Combine like terms to make a simpler expression 3z+z

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar