Pllzzz can you answer numbers 3 and 4 i need wait there is a pic

Brent works part-time at a clothing store. he earns an hourly wage of $15. if he needs to earn more than $45 in a day and works for x hours a day, which inequality represents this situation? a. 15x > 45 b. 15x < 60 c. x > 60 d. 15x < 45 e. x < 60

Which is the completely factored from of xy^3-x^3y

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year