Seven less than twice a number is no more than 77

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

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

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?