This is a grid and I get confused on grids could u please help me with this question (44 points do not just answer please help me)

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

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose