Answer:
22 dollars
Step-by-step explanation:
2.75x5=13.75 dollars 
$13.75+$8.00=$21.75
Round it up to the closest number which is $22
 
        
                    
             
        
        
        
Just divide $100 by 5. 100 divided by 5 = $20 each.
        
             
        
        
        
Both elevations or numbers are already expressed as a
rational number. This is because a rational number is defined as a number that
can be expressed as a quotient or fraction of two numbers: 
p / q
Since in this case, q may be equal to 1, then both are
rational numbers.
 
        
             
        
        
        
Answer:
-1-3 = -4
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Real numbers are "closed" under multiplication
Irrational numbers are "not closed" under division
Integers are "closed" under subtraction
Positive ration numbers are "closed"
Hope this helps! :)