It c so you see I can help you
Luckily this is a question that can be answered without the figure, seeing as there isn't one posted..
The vertext of an angle is always the point that the lines connect to. It is the common point of two line segments. For example, look here:
Answer:
Commutative property of multiplication
Step-by-step explanation:
This property states that numbers can be switched around when multiplying and the answer still remains the same
The term in that equation is 3x 7x and -9 hope this helps