The number is 6400.
We have given that,
divided 80 by my number, and then added 13. 
<h3>What is the expression?</h3>
An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Suppose the number is x

Subtract  13  from both sides


Multiply both sides by 80

x=6400
Therefore the number is 6400.
To learn more about the number visit:
brainly.com/question/251701
#SPJ1
 
        
             
        
        
        
Answer:
The prime factors of 168 are 2, 3, and 7.
Step-by-step explanation:
 
        
             
        
        
        
Working attached below:
Hope this helps! Any questions let me know :)
 
        
        
        
Answer:
6 root 5 - 4 root 15
answer is c 
root 5 x 6 - root 5 x 4 root 3
therefore answer is c
plz give brainliest
 
        
                    
             
        
        
        
Let the cost of gasoline in the year 2000 be represented b the equation
y = a + b*x
where
x = months, counted from January
y = cost, dollars
The given data in the table is
Month:        Jan  Feb  Mar  Apr  May  Jun  Jul  Aug  Sep  Oct  Nov  Dec
x, months:       1       2     3       4      5       6     7      8      9     10     11      12
y, dollars:     ---      ---     ---     ---   1.76   2.13   ---     ---    ---      ---    ---     ---
When x = 5, y = 1.76.
Therefore
a + 5b = 1.76               (1)
When x = 6, y = 2.13
Therefore
a + 6b = 2.13              (2)
Subtract equation (1) from (2).
a + 6b - (a + 5b) = 2.13 - 1.76
b = 0.37
From (1), obtain
a = 1.76 - 5b
   = 1.76 - 5*0.37
   = -0.09
The required equation is
y = 0.37x - 0.09
The graph shows the line, with the given data for May and June.
Answer: D.  y = 0.37x - 0.09