4. Tom has utility function u ( x, y ) and his is currently spending all of his income on positive ( non-zero ) amounts of goods x and yo px = 20 and Py = 10 . At Tom's current consumption bundle, fu ( x, y ) / } ulx, y ) / 5 4 = 9 9 / At his current consumption bundle , what is (ie calculate ) Tom's on X ? marginal utility of income if he spends the last dollar of her income b At his current consumption bundle , what is (le calculate ) Tom's marginal of income if he spends the Last dollar of her income on 14 C | Based on your answer from I and 2, can Tom increase his utility Level by spending his Income differently? what should Tom do about her consumption bundle