Answer:
D. 126
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180
30 + 24 + 3x - 9 = 180 add like terms
45 + 3x = 180 subtract 45 from both sides
3x = 135 divide both sides by 3
x = 45 and to find angle UVW replace x with 45
3*45 - 9 = 126
