Answer:
1 4/6
Step-by-step explanation:
Subtract 89 from -42. k=-131
Answer:

Step-by-step explanation:





interior angle of n-gon formula: 180 - ( 360 / n)
a 30 sided polygon, so in this case n = 30
so
interior angle = 180 - ( 360 / 30)
interior angle = 180 - 12
interior angle = 168
answer
168 degrees