Answer:
9330
Step-by-step explanation:
6 boys

10 boys=93300
1 boy=93300/10=9330
 
        
             
        
        
        
Top Right: 1 3/4 divided by 1/10
        
             
        
        
        
The answer is 40 is 80% of 50 ☺
        
                    
             
        
        
        
3 feet 8 inches converted to inches is 3x12+8=44inches
44inches times 4 pieces is 176 inches.
176 inches converted back to feet and inches is 176/12=14 feet 8 inches so he would need 15 feet of board
 
        
             
        
        
        
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