well, this is just a matter of simple unit conversion, so let's recall that one revolution on a circle is just one-go-around, radians wise that'll be 2π, and we also know that 1 minute has 60 seconds, let's use those values for our product.
Carol buys last years best selling novel, in hardcover, for $20.70. This is with a 10% discount from the original price. What wa
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