Answer:
42
Step-by-step explanation:
It changes 42 cents each year
 
        
             
        
        
        
Answer:
21
*40
<u>        </u>
      0
+840
<u>         </u>
840 
     105  
        
  -80
    <u>         </u>
        40
       -40
    <u>         </u>
          0
=105 
<u>8 goes into 84 ten times, 84-80 =4</u>  
<u>Bring down the zero make 40 which 8 goes into five times</u>
<u></u>
Step-by-step explanation:
cant be round because there no tenths place 
<h2>TRANSLATION</h2><h2>
</h2><h3>8 entra en 84 diez veces, 84-80 = 4
</h3><h3>
</h3><h3>Baje el cero, haga 40, en el que 8 entra cinco veces</h3><h3 /><h3>no puede ser redondo porque no hay décimos, asegúrese de poner los números correctos</h3>
 
        
             
        
        
        
Answer:
6.8+3.4=10.2
Step-by-step explanation:
 
        
             
        
        
        
Answer:
the classmate is incorrect 
Step-by-step explanation:
when you do the math for both inequalities they are equal to each other, despite the fact that one has multiplication and the other has addition.
 
        
             
        
        
        
Answer:
its right
Step-by-step explanation: