The total of the monthly bills will be $640. 
(Add all of the bills together)
        
                    
             
        
        
        
Hello there! :)
Answer:

<em><u>*THE ANSWER MUST HAVE A POSITIVE SIGN!*</u></em>
Step-by-step explanation:
First, you subtract by 8 from both sides of an equation.

Then, you subtract by the numbers from left/right.

 , <em>is the CORRECT/FINAL ANSWER!</em>
, <em>is the CORRECT/FINAL ANSWER!</em>
<em>Hope this helps you!</em>
<em>Have a nice day! :)</em>
<em>:D</em>
<em>-Charlie</em>
<em>Thanks!</em>
 
        
             
        
        
        
Answer:
5) 9
6) 11 2/3
Step-by-step explanation:
Use the Pythagorean Theorem.
5)  a²+5.6²=10.6²
a²+31.36=112.36
a²=81
a=√81
a=9
6) a²+4²=12.3333²
a²+16=152.11111
a²=152.11111-16
a²=136.1111
a=√136.1111=11.6666