Answer:
Step-by-step explanation:
The angles are complimentary, so they add to 90
6x + 3 + 7x + 9 = 90             Combine like terms
13x + 12 = 90                         Subtract 12 from both sides
13x = 90 - 12                          Combine
13x = 78                                 Divide both sides by 13
x = 6
<A = 6x + 3
<A = 6*6 + 3
<A = 36 + 3
<A = 39
 
        
             
        
        
        
23, 710, 23, 751, 23, 715 Least to greatest
23, 23, 23, 710, 715, 751
        
             
        
        
        
Answer:
x = 5
Step-by-step explanation:
Ashley and Adam spent a total of 31 hours on their projects so: 3x+2+4x-6 = 31
3x+2+4x-6 = 31
7x-4 = 31
7x = 35
x = 5
 
        
             
        
        
        
The answer would be C.
HOPE THIS HELPS! ^_^