Answer:
-1?
Step-by-step explanation:
That's a huge one. I don't think that anyone will actually answer that.
The reasonable answer should be Dispute.
Answer:
#4. m=0;
#3. m = 
Step-by-step explanation:
It seems right.
#4.
Maybe your teacher wants you to write m=0; because when a fraction has a numerator equal to zero then the fraction is zero.
#3.
Maybe your teachers want you to simplify the fraction and write m = 
The answer to the question