Please help really neeed it

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?

9/10 divide by -3/15 as a mixed number

Write the factored form of this trinomial 9x^2+18x-7