37. The absolute value symbol turns any negative number positive if it's within those brackets, so that's why the answer is positive. Hope this helped!
From the tables this would be 1 - 0.9773 = 0.0227 or 2.27%
Okay, so on this type of question, the exterior angle equals the two interior angles added up, so you take 4x+7+6x-9=118 and then solve!
x=12 :)
