You would set it up like this: 150x + 280 = 255x The you just solve.
        
             
        
        
        
A. 3 times 10^4
90000000 divided by 3000 is 30000 which happens to be equal to 3 times 10^4
If you want to learn how to do this just take your whole number ex: 3 and put 10^6 and you will have 3 followed by 6 zeros. The ^ is just how many zeros will follow your whole number at first.
        
             
        
        
        
Answer:
$1.11
Step-by-step explanation:
Find the price per roll by dividing the cost by the number of rolls:
9.99/9
= 1.11
So, the price per roll of toilet paper is $1.11
 
        
                    
             
        
        
        
Answer:
Option A. 3(x+8y)
Step-by-step explanation: