Answer:

Step-by-step explanation:
Let T be number of hours on 7 weekends .
Mia volunteers for hours on Saturdays = 3 hours
Mia volunteers for hours on Sunday = 2 hours
So, Total hours on each weekend = 3 hours + 2 hours = 5 hours
Mia volunteers at the animal shelter on 7 weekends.
So, Total hours on 7 weekends = 
So, 
= 
Hence an equation to find how many hours Mia volunteers is 