Answer:
<ABC = 54 degrees
Step-by-step explanation:
Taking the sum of angle on the straight line ABD as 180 degrees
3x+9 + 9x - 9 =180
12x = 180
x = 180/12
x = 15 degrees
Since <ABC = 3x+9 (vertically opposite angles)
<ABC = 3(15)+9
<ABC = 45+9
<ABC = 54 degrees
.............................................your answer is 16
On brainly, i don’t think you can delete questions. but you can just ignore them
Answer:
100+10n
Step-by-step explanation: a(10)
100+10(10)
100+100 = 200