The answer is A, you would plug in 3 for fx so therefore the answer would be A. Then to make sure plug in the other functions.:)
Answer:
Evaluate:
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Factor:

Step-by-step explanation:
This is a ratio.
12 km : 3 h
simplify to-
4km : 1 h
which means the hiker traveled 4 km per 1 hour.
Answer:
Graph it???
Step-by-step explanation: