Question 1036889
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A landscaper is preparing a circular flowerbed. The bed has a 12 -foot diameter. He will need 12 plants per square yard. 
How many plants should he buy?
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<pre>
9 sq ft = 1 sq yard

A = {{{pi*r^2}}} = 36 pi sq ft.

{{{(36pi)/9}}} = {{{4pi}}} sq yds.

multiply by 12 = 150.72 plants, or 151.
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