1 yard = 3 feet
1 mile = 5,280 feet
So, 1 mile = 5,280/3 yards = 1760 yards
R in this equation refers to the radius
THE 5 IDENTICAL SHELVES WOULD have to be 76 because if you take 400 - 20 (because that left over) you get 380/5 you get 76 and to check your work you do 5x76=380+20 you get 400 so 76 is you answer
Answer:
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i am not sure but i hope it will help you.
please mark me as brainlest.
Im pretty sure the answer is x=-2