Answer:
Number 1 is a function. If you can draw a vertical line through the line graphed and it doesn't pass through it twice, it is considered a function.
Number 2 is B.
Number 3 is A. **I don't know this one for certain, but I graphed A and B for you.
I don't know number 4.
Number 5 is Beatz on Demand. This company charges $5.99 a month, while iTunez charges $8.99 a month.
Step-by-step explanation:
Below is the graph for number 3.
 
        
             
        
        
        
Answer:
 the blank =24x
Step-by-step explanation:
Assuming the expression is x^2 - ________x +144, 
you can tell that this is in the form of a^2 +2ab+b^2.
If the "a" is squared, you would get x^2. And if the "b" was squared then you would get b^2. 
So as the result, the expression is
 (x-12)^2= x^2-24x+144
 
        
             
        
        
        
Ratio of Anne : Mark : Ben = 20 : 35 : 25
 = 4 : 7 : 5 ( total 16 parts )
Anne = 4/16 x £80 = £20
Mark = 7/16 x £80 = £35
Ben = 5/16 x £80 = £25
        
             
        
        
        
Step-by-step explanation:
<u>Use the Distributive Property:</u>

<u>Subtract 6m from both sides:</u>

<u>Add 20 to both sides:</u>

<u>Divide each side by 2:</u>

 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
2.5/8
(5/2) / 8
(5/2) * (1/8)
5/16