(a) For the sequence 11,13,15,17,find the 13th term

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

Ineed to know the answer to this algebra question.

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]