Please help answer required questions 1-3

PROBLEM 7-28 Make or Buy Analysis [LO 7-3] t to stop making said Wim Niewindt, managing director of Antilles Refining, N.V., of Aruba. "At a price of $18 per drum, we would be paying $5 less than it costs us to manufacture the drums in our own plant. Since we use 60,000 drums a year, that would be an annual cost savings of $300,000." Antilles Refining's current cost to manufacture one drum is given below (based on 60,000 drums per year)