-6 it is just the opposite of the number. So a positive would be a negative and a negative a positive. So the answer to your question is -6.
9 people have 4 or 5 pets. 4 people have 2 or 3 pets.
9-4=5
C. 7.5
3/4 = .75
7.5/10 = .75
Answer: A)42 im pretty sure