I can answer this but I need more terms
        
             
        
        
        
Answer:
2 books
Step-by-step explanation:
10 + 5x = 16 + 2x
      - 2x         - 2x
10 + 3x = 16
-10          -10
3x = 6
/3    /3
<u>x = 2</u>
 
        
             
        
        
        
Answer:
Then answer is 10. 
Step-by-step explanation:
9 would cover 1,800 square feet so 925 square feet would be left so you should buy 10 cans. 
 
        
                    
             
        
        
        
Answer:
1008
Step-by-step explanation:
to find the number of combinations, just multiply everything. you will get 1008 :)