Percent is pars out of 100
40%=40/100=4/10=0.4
'of' means multiply 
0.4 times something=56
divide both sides by 0.4
something=140
th enumber is 140
        
             
        
        
        
there are 72 campers at the summer camp because if we just multiply 8 times 9 equals 72
        
                    
             
        
        
        
Do you know the multiples of 10
        
             
        
        
        
Answer:
83343249
Step-by-step explanation: