I would reccomend the app photo math its really easy to use and it answers questions like this.
Use the formula
n(n-1)/2
which is the total number of connections between n points
So,
4(3)/2 = 6
the answer is option C.
Hope this helps
Step-by-step explanation:
Mrs.Rose received a 35% discount on her cell phone. The price of her cell phone came out to be $180. How much was the original price of her cell phone? <the answer is -145 :) >
Answer
A
Step-by-step explanation:
i just calculated it its right