HELP PLEASE WITH 6, 7 AND 8

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?

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

15. if the 8% tax on an item amounts to $0.96, what is the final price (tax included) of the item?