Answer:
4p + 2 
Step-by-step explanation:
 (6p + 3) - (2p + 1) 
Distribute the minus sign
6p +3 -2p -1
4p +2
 
        
             
        
        
        
Hey there!
The vertex of any angle refers to the place where the angles forms (the middle most point in an angle). In <4, <u>U </u>is the vertex of the angle.
Hope it helps ya!