Answer:
A. 
Step-by-step explanation:
4 × 16 = 84
7 × 12 = 84
6 x 14 = 84
Hope this helps! 
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Hello!
A line that is perpendicular to another has an opposite-reciprocal slope.
Meaning:
- Flip the sign (+/-)
- Flip the fraction
The slope perpendicular to 3/5 would be -5/3.
We can solve for the y-intercept by plugging in the x and y values given from the coordinate into the equation with out new slope.
<h3 /><h3>Solve for B</h3>
The y-intercept of the new line is 20.
The equation is 
 
        
             
        
        
        
Find the slope of the line passing throught the points (2, 2) and (4, 3).
The formula of a slope:

Substitute:

If the point (x, -1) lie on the same line, then the slope of line passing through the points (2, 2) and (x, -1) the same:
Substitute:

We have the equation:
 <em>cross multiply</em>
        <em>cross multiply</em>

 <em>add 2 to both sides</em>
           <em>add 2 to both sides</em>

<h3>Answer: x = -4.</h3>