Answer:
how much does 1 pound cost?
 
        
                    
             
        
        
        
First you gotta change it to a fraction, which would be 6/10 because it's in the tenths place. Now simplify it, which would be 3/5. 
        
             
        
        
        
Answer:
The slope that is perpendicular to the line will be:
 
Step-by-step explanation:
Given the equation

We know that
  is the slope-intercept form of a line where m is the slope and b is the y-intercept.
 is the slope-intercept form of a line where m is the slope and b is the y-intercept.
So, writing the equation in the slope-intercept form


here 
 ∵
        ∵   
        
As we know that for perpendicular lines, one slope is the negative reciprocal of the other.
Therefore, the slope that is perpendicular to the line will be:
 