1. You have that the speed is:

Where
is the distance and
is the time.
2. Tory pilots her boat
before docking, therefore, his time is

3. Emilio continues for another
, with a total of
before docking. Therefore, his time is:

4. And his speed is:

5. Solve for
and substitute the value into the formula of Tory's time:

The answer is: 
Answer: PLEASE DONT REPORT ME!
Step-by-step explanation:
Is there any specific answer choices? i
Option B is correct.
Step-by-step explanation:
We need to identify which of the following equations has exactly one solution.
We will solve each equation to find the answer
A. 
Solving and finding value of x:

This equation has infinite number of solutions because both sides are equal to 0
B. 
Solving and finding value of x:

This equation has exactly one solution
C. 

This equation has no solution because both sides are not equal.
So, Option B is correct.
Keywords: Solving Equations
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X is less then or equal to 8
idk about the rest