Is Jane maximizing her utility? Explain your reasoning and show any calculations.

Questions
Jane has been working all day, missing both her breakfast and lunch. Finally able to leave work, after being required to work a couple of overtime hours, she is starving. Jane has $20 in her pocket, so she stops at a local fast food restaurant and orders a grilled chicken sandwich and an order of fries. As she sits down to eat a

Is Jane maximizing her utility? Explain your reasoning and show any calculations.

If Jane is not maximizing her utility, remembering the law of diminishing marginal utility, would she be better off to buy one less chicken sandwich and one more order of fries? You will need to enter a number for marginal utility, based upon the law of diminishing marginal utility, for an additional order of fries. Be sure to explain your reasoning and show your calculations.

If Jane is not maximizing her utility with the original purchase combination, remembering the law of diminishing marginal utility, would she be better off buying just one more order of fries? You will need to enter a number for marginal utility, based upon the law of diminishing marginal utility, for an additional order of fries. Be sure to explain your reasoning and show your calculations.

If Jane is not maximizing her utility with the original purchase, remembering the law of diminishing marginal utility, would she be better off buying one less order of fries and one more chicken sandwich? You will need to enter a number for marginal utility, based upon the law of diminishing marginal utility, for an additional chicken sandwich. Be sure to explain your reasoning and show your calculations.