Supplementary angles add up to 180 degrees, so look for two angles by each other that add up to 180 degrees.
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Answer:
x = 111
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 7 , then
sum = 180° × 5 = 900
Sum the interior angles and equate to 900
x + 139 + 121 + 125 + 126 + 158 + 120 = 900
x + 789 = 900 ( subtract 789 from both sides )
x = 111
Answer:
y= -12x - 77
Step-by-step explanation:
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Answer:
what do u need help with
Step-by-step explanation:
Answer: b
Step-by-step explanation: 600 is the total so, just do 10x and 12
