4.89 is this a rational or a irrational

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

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

How can you construct perpendicular lines and prove theorems about perpendicular lines