Emma owns a flower shop in tampa. she pays $3,091 per month to lease her building, $2,208 in wages, $1,887 for flowers and other supplies and she produces 662 flower arrangements per month. suppose emma sells her flower arrangements for $39 each and sells 611 per month. given the information available we know that her total revenue equals while her average total cost equals

You are the manager of a large crude-oil refinery. as part of the refining process, a certain heat exchanger (operated at high temperatures and with abrasive material flowing through it) must be replaced every year. the replacement and downtime cost in the first year is $165 comma 000. this cost is expected to increase due to inflation at a rate of 7% per year for six years (i. e. until the eoy 7), at which time this particular heat exchanger will no longer be needed. if the company's cost of capital is 15% per year, how much could you afford to spend for a higher quality heat exchanger so that these annual replacement and downtime costs could be eliminated?