The answer is 57 because using remote angles theorem you get the largest angle equals to 66 degrees but you are not done yet you have to subtract 66 from 180 because of sum of angles in a triangle so you get 114 degrees and since you have an isosceles triangle you have to divide by two to get y so y = 57 degrees
Your answer would be 312.50. you would first subtract 125,000 and 12,500 and that equals 112500. you than divide that from 360 and than you get 312.50.
