Answer:
It’s C
Step-by-step explanation:
The Most Logical Answer is B
Answer:
0.7453
Step-by-step explanation:

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Let
x---------> the rate of the boat in still water in mph
y--------> the rate of the current in mph
we know that
Upstream

equation 
Downstream

equation 
Adds equation
and equation 

Find the value of y

therefore
the answer is
the rate of the boat in still water is 
the rate of the current is 