Functions Assignment 1_ The volume and surface area of a cylinder are given, respectively, by the formulas V = arb and SA = 2nrb + 2ur. a) Determine an expression, in simplified form, that represents the surface area-to-volume ratio for a cylinder. b) Calculate the ratio for a radius of 0.8 cm and a height of 12 cm. 2. If x = -2 and y = 3, write the three expressions in order from least to greatest. (x) by3x 3(1) -2 3. A town has a population of 8400 in 1990. Fifteen years later, its population grew to 12 500. Determine the average annual growth rate of this town's population