Which sum or different is modeled by the algebra tiles

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

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73

I’m really confused and need your assist me with this question i’ve never been taught