IM TRYING TO ANSWER BUT IT WONT LET ME OMH ITS C
Send your snap I can help
Answer:
This is just multiplying not simplify.
It's another word for unit rate if that helps
Answer:
(C) 18
Step-by-step explanation:
We can create a systems of equations. Assuming
is Michelle's age,
is Joan's age, and
is Ryan's age, the equations are:



We can use substitution, since we know the "values" of m and j.


So we know that Joan is 18 years old.
Hope this helped!