6. (10 points) In recent years fresh bagel sales have been growing at about 30% per year. Once considered an ethnic food to be eaten only by some consumers, bagels now "have become the new doughnut to bring to the office." But one problem with bagels is that they get stale fast. In the words of Ray Lahvic, editor emeritus of Bakery Production and Marketing, "The worst thing in the world is a day-old bagel." If a market researcher asserts that the slope of the typical consumer's indifference curve between fresh bagels and day-old bagels is -1, would you agree with Mr. Lahvic's statement about fresh and day-old bagels given above? Please explain. Note: Slope of the indifference curve is the marginal rate of substitution (MRS) and the MRS is defined as "How much of good A will a consumer give up to get one more unit of good B such that the total utility before and after the change in consumption of A and B is the same." 7. (5 points) Maria has budgeted a total of $9 to spend on two goods: chips and salsa. She likes to consumer a unit of chips in combination with a unit of salsa. Any unit of chips that she cannot consume in combination with a unit of salsa is useless. Similarly, any unit of salsa that she cannot consume in combination with a unit if chips is useless. If the price of a unit of chips is $0.50 and the price of a unit of salsa is $0.10, how many units of each good does she purchase. Please explain and show any calculations