Which statement is true about the climbers’ heights? What is the value of a in the equation 3 a plus b equals 54, when b equals 9?

15
18
21
27

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

Identify the number 127 as a rational or irrational. explain