Answer:
The answer is 1.
Step-by-step explanation:
Add all the item together:
16 + 28 + 12 + 4
=60 total items
Answer:
6.7
Step-by-step explanation:
Here, we can apply cosine law, 
We the plug in values: 
and solve that CB is around 6.7
The answer is B because I just took the quiz.
-4 = x - 7
-4 + 7 = x
3 = x
Therefore x = 3