You go it right it's the first one
        
             
        
        
        
Answer:
m = 0
Step-by-step explanation:
<u>If two lines are parallel, their slopes are equal. </u>
The slope of x - axis is 0
(why?)
because, slope of a line is given by 

Θ is the angle made by the line with the x- axis. 
Here, the line in question is the x- axis itself, and every line makes an angle of 0° with itself. 
=> Θ = 0
=> tan Θ = 0
=> slope = 0
 and the line in blue is parallel to the X- axis, therefore, it's slope is also 0
(also, a line makes an angle of 0° with the line it's parallel to)
<u>                                </u>

 
        
                    
             
        
        
        
Answer:
$43.20
Step-by-step explanation:
A swimsuit that originally cost $90 before any discount is on sale for 20% off. 
X = price of swimsuit
X = 90
20% off = 90 * 0.8 = 72
The swimsuit is then put on clearance for an additional 40 % off the sale price.
72 * 0.6 = 43.2
what is the final price? 
$43.20
 
        
                    
             
        
        
        
Answer:
6.708
Step-by-step explanation:
- Y varies directly as the square of x (Given)
 ......(1) ......(1)
- Y varies inversely as the square root of z (Given)
 ......(2) ......(2)
- Combining (1) & (2), we find:
 (Where k is constant of proportionality).....(3) (Where k is constant of proportionality).....(3)
- Now, when y = 2, x = 3 and z = 4, we find the value of k i.e. constant.
- Plugging the value of k in (3), we find:
 ....(4) ....(4)
- Next, in equation (4), plug y = 5, x = n and z = 16 and obtain the value of n by solving it.
 
        
             
        
        
        
Answer:
by 5
Step-by-step explanation: because tgey wou;d nred help