D=vt, distance is equal to velocity times time.
4v+3(v+3)=149 perform indicated multiplication
4v+3v+9=149 combine like terms on left side
7v+9=149 subtract 9 from both sides
7v=140 divide both sides by 7
v=20
So the ship traveled at a speed of 20 mph when heading east.
The domain of the function will be [-4, 6). Then the correct option is B.
The complete question is attached below.
<h3>What are domain and range?</h3>
The domain means all the possible values of x and the range means all the possible values of y.
The function is given below.

Then the domain of the function will be [-4, 6).
Then the correct option is B.
More about the domain and range link is given below.
brainly.com/question/12208715
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