Which expression that is equivalent to 3/5 (3y + 15)

Sandy works at a clothing store. she makes $7 per hour plus earns 15% commission on her sales. she worked 75 hours over the last two weeks and had a total of $2,566 in sales before taxes. which of the following is closest to how much she will earn in hourly wages and commission for those two weeks?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Which of the following graphs could represent a cubic function?