Can someone help me please???

Write a polynomial that fits the description: a third-degree polynomial with leading coefficient -4

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

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%.