HELP ME PLEASE, I NEED HELP AS SOON AS POSSIBLE T^T i have no clue what im doing

Find the area of a regular nonagon (nine sided polygon), that has an apothem of 16.48 and a side length of 12.

Arock was dropped from the top of a building. the function that describes the height after it was dropped is f(x)=64-16x^2. what are the zeros of the function and what do they mean?

Renee hiked for 6 3/4 miles. after resting, renee hiked back along the same route for 5 1/4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.

Mr. barth is painting an arrow on the school parking lot. he plots the arrow on the coordinate plane as shown below. what is the area of the arrow he is painting?