Answer:
1) 103 degrees
2) 109 degrees
3) 65 degrees
Explanation:
1) A line is 180 degrees, so 180 - 77 = 103 degrees. y = 103
2) All the angles in a triangle add up to 180 degrees, so 64 + 45 = 109. 180 - 109 = 135. x = 135
3) same as the last one, 68 + 47 = 115. 180 - 115 = 65. x = 65