I think the answer would be the second one or B. the number of hours billed
        
                    
             
        
        
        
That equation can represent the relationship among the image distance, 
object distance, and focal length of a lens.  
It could describe the effective resistance of two resistors in parallel, the 
effective inductance of two coils in parallel, or the effective capacitance 
of two capacitors in series.  
Thanks for sharing it.  Now, did you have a question to ask ? 
        
             
        
        
        
The type of stock you are refering to is common stock
        
             
        
        
        
Answer:
<4 = 88
<3 = 92
Step-by-step explanation:
The sum of the angles of a triangle is 180
<4 + 45+ 47 = 180
<4 + 92 = 180
< 4 = 180-92
<4 = 88
We know the <3 and <4 form a line
<3 + <4 = 180
<3 + 88 = 180
< 3 = 180-88
<3 = 92