
-8400/68 simplifies to to -2100/17, dolphins/year, so 2100 less dolphins every 17 years.
and we can just divide those to get the decimal amount of -123.53, which means, 123.53 less dolphins every year.
of course, there's no such a thing as 0.53 of a dolphin, so, we can say "about" 123 less dolphins per year.
ANSWER

EXPLANATION
The given line JKL is a straight line. The angle on a straight line is 180 degrees.
This implies that the sum of the angles ![\begin{gathered} Solve for x in the equation above:[tex]\begin{gathered} x=180-30 \\ x=150\degree \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20Solve%20for%20x%20in%20the%20equation%20above%3A%3C%2Fp%3E%5Btex%5D%5Cbegin%7Bgathered%7D%20x%3D180-30%20%5C%5C%20x%3D150%5Cdegree%20%5Cend%7Bgathered%7D)
That is the value of x.
It's C. When you're dividing g(x) by f(x), you get the equations in both B. and C., but C is more correct because you can't have x=-1/3 because the function is undefined at that number (you can't have the denominator equal 0)
C. Is the answer to this question