6x4 = 24
Therefore, 24 is your answer.
So basically what you have to do is
Im pretty sure the number of books is your x and the cost is your y
The intersection of sets is the point that represents the common point of multiple sets.
The region that represents the intersection of sets A and B is region II.
From the question, we understand that sets A and B have a common set element at II.
This means that region II is the intersection of both sets.
Hence, the region that represents the intersection of sets A and B is II.
Read more about set intersection at:
brainly.com/question/6779867