Answer:
34 hours
Step-by-step explanation:
Lets call M the number of hours that Maddie volunteered. Ryan volunteered 1 + 3×M hours, and altogether they volunteered 45 hours, so: 
1 + 3×M + M = 45
1 + 4M = 45 Subtract 1 in both sides
4M = 44 Divide both sides by 4
M = 11 hours
So Maddie volunteered 11 hours, and Ryan volunteered 
1 + 3×11 = 34 hours 
 
        
             
        
        
        
2 because the 2 is the number on the left and can be bad and good and uhh yea
        
                    
             
        
        
        
5/6, its 10/12, so just divide by two to simplify.