The trick to solving this problem is to know and remember that the sum of all the interior angles of a triangle is always 180 degrees.
Thus, (6x+1) + (5x-17) + (9x-24) = 180.
20x = -40, so x = -2 (answer)
The answer for this question is 92.7 at leaat 1 decimal place
Answer = 25
Explanation
Area divided by width: 475 / 19 = 25
Therefore answer is: Width - 25m
I think it is c not sure though maybe double check.
