PLEASE HELP!

What is the coefficient of the term of degree 4 in this polynomial

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?