Answer:
 1) 
 2) 
 3) 
 4) 40
 5) 
Step-by-step explanation:
 1) Distribute the negative sign that is outside the parentheses and then you must add like terms, as following:
 
 2) According to the Product property of exponents, when you multiply powers with the same base, you must add the exponents. Then:
 
 3) Apply the Distributive property and the Product property of exponents. Then, you obtain:
 
 4)  is a square of a sum, then, by definition you have:
 is a square of a sum, then, by definition you have:
 
 Then:
 
 The coefficient of the second term is the number in front of the variable <em>a.</em> Then, the answer is: 40
5)  Apply the Distributive property and the Product property of exponents, then, oyou must add the like terms:
 
 
 
 
 
        
             
        
        
        
Answer:
-16
Step-by-step explanation:
Substitute the values into the equation

<h2>
<em>OladipoSeun</em><em>♡˖꒰ᵕ༚ᵕ⑅꒱</em></h2>
 
        
             
        
        
        
Answer:
4y
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
That function is a line that goes through the origin (0,0).
You only need one more point to be able to draw it. 
Take x=4,5 the corresponding value of y is exactly what you want to know, the number of miles the lava moved after 4,5 hours. 
So y = 6 * 4,5 = 27
Your second point is (4,5 , 27).
Now you can draw your line.