Astore has a $9000 monthly advertising budget. newspaper ads cost $ 600 each with a limit of 40 per month, radio ads cost $ 30 each with a limit of 60 per month, and tv ads cost $3000 each with a limit of 10 per month. about 5000 people see each newspaper ad, 3000 hear each radio ad, and 12,000 see each tv ad. how much of each type should be used to maximize the store's exposure? interpret the results.

Quick computing currently sells 12 million computer chips each year at a price of $19 per chip. it is about to introduce a new chip, and it forecasts annual sales of 22 million of these improved chips at a price of $24 each. however, demand for the old chip will decrease, and sales of the old chip are expected to fall to 6 million per year. the old chips cost $10 each to manufacture, and the new ones will cost $14 each. what is the proper cash flow to use to evaluate the present value of the introduction of the new chip? (enter your answer in millions.)