Help please (: this has something to do with geometry!!

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

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

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5