The original height of the tree is 60 m
 
        
                    
             
        
        
        
The answer is 20n + 10 = 90 because the bar seats 10 people so you take 90-10 and you're left with 80. Four seats are at a table so you take 80/4 and you're left with 20. All you need to do now is reverse the order to fit the answer, and since you originally subtracted, you'd add. You could also do 20x4 + 10 and see that it equals 90 to check your answer.
        
                    
             
        
        
        

Select the two binomials that are factors of this trinomial.


We got the factors as :

and 


 
        
             
        
        
        
Answer:
(-4.5, 2.5)
Step-by-step explanation:
The solution for two graphed linear equations is the intersection (The point where two lines meet or cross). 
 
        
             
        
        
        
Answer:
Option B is correct.
The expression which is equivalent to   is;
  is; 
Explanation:
Given the equation:  for all values of n.
 for all values of n.
The quadratic equation in this form; 
First find two numbers that multiply to give ac and add to give b.
From the given equation;
a =1 , b = 26 and c =88
then,
the two number that multiply to give ac =88 is, 22 or 4
and they add up to give b=26 (i.e 22+4)
Now, rewrite the middle term i.e 26n with 22n and 4n , we have

Now, factor the first two terms and last two terms,

we see that  is common to both terms so, we have;
 is common to both terms so, we have;

Therefore, the expression  is equivalent to
 is equivalent to   
 
Check:
(n+4)(n+22) =  =
= [ True]
   [ True]