Let z represent the number of students in a class. Write an
expression for the number of students in 3 equal groups.

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?

What is the value of x in the following equation. -x ^3/2 = -27

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?