Answer:
C. 9
Step-by-step explanation:
y(x+x) +3 
{x= 1 , y= 3}
Putting values.. 
 3 (1+1) +3
= 3 (2) +3
= 6 + 3
= 9
So, the option C. 9 is the correct answer. 
 
        
             
        
        
        
Answer:
Please read the explanation to clarify.
Step-by-step explanation:
What you would have to do is multiply 1.06 by 4 to get 4.24. However, if you search up the exact conversion on g00gle, "how many liters are in 4 quarts?", you get the exact number of 3.78541, which can be rounded to 3.78. I believe if this is more of an exam thing, you should go with the first answer I gave, 4.24, and show how you multiplied to show your work. However, if you would like to use the second answer, it is completely up to you. Either way,  I hope this helped, and if you have any further questions please don't hesitate to let me know. :)
 
        
                    
             
        
        
        
Answer:
-13.333
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Where are the expressions??
Step-by-step explanation:
x + 2y + x + 2  simplified would be 2x+2y+2
Hope this helps :)