The question is in the image

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

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

What is the factored form of the following expressions? d^2 – 13d + 36