Canfield Technical School allocates administrative costs to its respective departments based on the number of students enrolled, while maintenance and utilities are allocated per square feet of the classrooms. Based on the information below, what is the total amount of maintenance cost to the Carpentry Department (rounded to the nearest dollar) if administrative costs for the school were $50,000, maintenance fees were $12,000, and utilities were $6,000?

Department Students Classrooms
Electrical 120 10,000 sq. ft.
Welding 70 12,000 sq. ft.
Accounting 50 8,000 sq. ft.
Carpentry 40 6,000 sq. ft.
Total 280 36,000 sq. ft.

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?