The circumference C of a circle is a function of its radius given by C(r) = 2πT. a. Express the radius of a circle as a function of its circumference. Call this function r (C). Enter the exact answer. Enclose numerators and denominators in parentheses. For example, (a - b)/(1+n). r (C)= b. Find r (387) and interpret its meaning. r (387) = Number The radius of a circle with a circumference of 387 is r (387). The radius of a circle with a circumference of r (387) is 38m.

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