Will yall please help me out?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

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?

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?