13 ≤ -2(y - 4) + 3y please write full explaning as well and answering it thank you

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

Charlie is a car salesman he earns $800 plus a 9% commission on all of her sales for the week if charlie receive the payment for $1960 this week how much where is total sales

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5