radius loses 3 inches every 30 seconds Do the following a Express the circumference in inches of the circle as a function of its radius in inches way that C r b Express the radius in inches of the circle as a function of time in minutes c Express the circumference in inches of the circle as a function of time in minutes C t d Choose the composition that represents your answer to part c O C t Cor t O r t ro C t O C r ro C r O C t ro C t Or C ro C t