From Section 3.3 complete the following problems for practice:

• Numbers 22 (solution: operate refinery I for 4 days and refinery II for 3 days), 23 (see example 1 for a similar problem), 24, 25, 26 (solution: ship 4 cars from Baltimore to Philadelphia, 1 car from Baltimore to Trenton, and 6 cars from NY to Trenton), 31

From Section 3.2:

• 25-31 odds only
• 33, 34 (Solution: Cleveland should operate 20 days, Toledo should operate 50 days), 37, 38 (Solution: 8 hours from smelter A, 11 hours from smelter B), 39, 40 (Solution: 80 homes of the first type, 60 of the second type), 41

For the test you should be able to carry out all of the steps to a linear programing problem.