Answer:
The 15% of 60 is 9 with amount base and percentage
x = 10°
Step-by-step explanation:
Step 1:
92° + x° + 78° = 180° Supplementary Angles
Step 2:
x° + 170° = 180° Combine Like Terms
Step 3:
x° = 180° - 170° Subtract 170° on both sides
Hope This Helps :)
21Step-by-step explanation: