Answer:
B
Step-by-step explanation:
For a relationship to be a function
Each value of x in the domain can only have 1 unique value of y in the range. That is, one-to-one correspondence.
The only relation which meets this criteria is B
me at 1:36pm: oh no, i hope he got his answer
Common denominator = 40
36/40 + 20/40 = 56/40
Reduce and simplify=
7/5, which is 1 and 2/5
Hope that helps
Divide 20 by 4=5
then 5 by 7=5/7
k=5/7
