Answer:
30.5
Step-by-step explanation:
hope this helps mark me brainliest:)
Answer:
1:
and the same, but its -3 instead of 3
2: x=9-3y
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https://youtu.be/WaeD3qKc7Jc
Answer:
<u>1260 degrees (1260°)</u>
Step-by-step explanation:
<u>Formula to Find Sum of Interior Angles of a Polygon</u>
- 180 (n - 2)
- n is the <u>number of sides</u> of the polygon
<u>Nonagon (9-sided polygon)</u>
- 180 (9 - 2)
- 180 × 7
- <u>1260 degrees (1260°)</u>