The answer is 6 because 21+9=30 and 30-6=24 and 24 is the number of students in the class.
The answer that I got was y=105
Hope this helps!
Answer:
the number of kilometers hiked in all is 
Step-by-step explanation:
The computation of the number of kilometers hiked in all is shown below:
= Erwin + Jericho

Hence, the number of kilometers hiked in all is 
Answer:
i think it is 3 miles but dunno
Step-by-step explanation: