42. Use rational expressions to compare the thickness of a nickel and a 30 quarter. and a a. Use the formula V = TH to write a rational expression for the thickness (height) of a coin in terms of its volume, V, and its diameter, d. b. Write a simplified rational expression for the ratio of the thickness of a nickel, in terms of its volume, V, and diameter, d,, to the thickness of a quarter with volume V, and diameter da. c. Calculate the thickness of a nickel and a quarter if a nickel is minted with a diameter of 21.21 mm and a volume of 689 mm³ while a quarter is minted with a diameter of 24.26 mm and a volume of 809 mm³. Which coin is thicker?

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