The boat traveled 252 miles downstream, so it means that the distance traveled by the boat is 252 miles. The speed of the boat is exactly 21 miles per hour and in going back is 3 miles per hour. In my prediction, the speed of the current should not be greater than 3 miles per hour. So the best answer would be 2 miles per hour.
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Answer:
Which is number 20?
Step-by-step explanation:
Which is number 20?
16/8k - 24/8 + 2/5 + 10/5k
2k - 3 + 2/5 + 2k
4k - 13/5
Hope it helps :)