Answer:
R=30.81≈31
Step-by-step explanation:
Answer:
She will be able to fill 9 shelves with 1 book left over.
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The 3 angles of a triangle equal 180.
Subtract the bottom 2 angles from 180 and you get 50
So 8x + 2 = 50
Subtract 2 from both sides:
8x = 48
Divide both sides by 8
X = 6