Answer:
v = -6
Step-by-step explanation:
(Optional): Simplify this equation by dividing all terms by 4:
2v - (v - 8) = 2
Perform the indicated multiplication, obtaining: 2v - v + 8 = 2
Next, combine like terms: v = -6
To find the value for a in this equation, we can follow the next steps:

First, multiply all of the equation by 5:

Finally, add 115 to both sides of the equation:

Therefore, the value for a is a = -10.
I would go with D but I am not saying it is correct.
~kites have adjacent sides equal~
x = 3x-12
move 3x to the other side as a negative number
-2x = -12
divide both sides by -2
-12 divided by -2 is 6
so, x is equal to 6
but, we aren't done yet because the questions asks for the value of angle b
substitute the value we found into the equation for angle b
3(6)-12
36-12
24
so, angle b has a value of 24 degrees
The answer to your question is 4.8 kilometers. Brainliest?