4x+4y..........................
 
        
             
        
        
        
Answer:
If you want me to solve for b then 
b  ≤  −
6
 
        
                    
             
        
        
        
A joint relative frequency is found by dividing a frequency that is not in the Total row or the Total column by the frequency’s row total or column total.
        
             
        
        
        
Answer: A. 20%
Step-by-step explanation:
First, to find the total number of teachers, we can add 25+32+18+5+20=100
Next, we divide the number of teachers in 2014 (20) by the total number of teachers (100) as follows:
20 ÷ 100 = 0.2
Finally, to make 0.2 a percentage, we can multiply 0.2 X 100 = 20
Therefore, the correct answer is A.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
To write the equation of a line, find the slope between two points. Substitute two points into the slope formula. If the equation has an x-intercept of 6 then the line passes through the point (6,0). Use (6,0) and (4,4) in the formula.

Since m = -2, substitute its value and the point (6,0) into the point slope form. Then simplify.
