When I look at a problem like this, I think of the FOIL method. This method states "You multiply integers in the order of First, Outside, Inside, Last, and then add them  together"
(a -3b)(2a - 5b)
First --- 2a * a
Out  --- (-5b) * a
In     --- (-3b) * 2a
Last --- (-3b) * (-5b)
2a² - 5ab -6ab + 15b²
2a² - ab + 15b²
This would be your answer in simplest form!
        
             
        
        
        
Perpendicular lines have slopes that are opposite and reciprocal. Therefore, the line we are looking for has a -3 slope.
y= -3x+b
Now, we can substitute in the point given to find the intercept.
2= -3(4)+b
2= -12+b
b=14
Finally, put in everything we've found to finish the equation.
y= -3x+14
        
             
        
        
        

First, solve 

Substitute that into equation 

Substitute y = 125 into 

There were 235 adult tickets and 125 junior tickets.
Hope this helps. - M
 
        
             
        
        
        
43/12 can be
3  7/12
Hope this helps
        
                    
             
        
        
        
Answer:
First one hypotenuse leg
Step-by-step explanation: