Answer:
The last set.
Step-by-step explanation:
The first 3 sets contain 'one-to-many' relations , for example (1, 3) and (1, 5) in set 1 and (0, 0) and (0, 2) in set 3 , so they are not functions.
The last set does not have any of these and is a function.
sorry i don't know the answer to this question
1/4 or 25% of the student population travel by neither method
1/2=2/4
1/4+2/4=3/4
1-3/4=1/4
1935
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