Hey! If 27 cars make up 60%, divide that by 6 to get 10% of the answer which is 4.5. Multiply 4.5 by 10 to get 100% which is 45 cars for 100%.
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(12 gal)/5 = 2.4 gal
Each camper used 2.4 gallons of water.
        
             
        
        
        
Answer:
Given the statement: 
9 less than the sum of x and 5
"Sum of x and 5" means 
" " means subtract
" means subtract
then;
the statement 9 less than the sum of x and 5 becomes;
⇒
⇒
Therefore, the expression for the given statement is 