Answer:

Step-by-step explanation:

Hope this helps. 
 
        
             
        
        
        
Answer:
$12.08
Step-by-step explanation:
divide 145 by 12 and BOOM, you get 12.08
 
        
             
        
        
        
Answer:
B)5/3
Step-by-step explanation:
"3x + 5y = 15."
Rewrite in slope-intercept form.
The slope-intercept form is  
y=mx+b
where  m is the slope and  b  is the y-intercept.
y=mx+b
Subtract  3x  from both sides of the equation.
5y=15−3x
Divide each term by  "5"  and simplify.
5y/5=15/5−3x/5
"5" and "5" cancel each other out
Divide  15  by  5
y=3-3x/5
Reorder  3  and  −3x/5
y=-3x/5+3
Rewrite in slope-intercept form.
y=−3/5x+3
Slope:-3/5
The equation of a perpendicular line to  y=−3x/5+3  must have a slope that is the negative reciprocal of the original slope.
<em>m</em>perpendicular=−1/(−3/5)
Simplify the result.
mperpendicular=5/3
hope this helps!
 
        
             
        
        
        
Answer B
Explanation: Y=mx+b 
M=slope and b=yintercept