please answer all 3

1) [1 point] (This Question is related to Chapter 1 section The Productivity Challenge) A firm cleans chemical tank cars in the Bay St. Louis area. With standard equipment, the firm typically cleaned 70 chemical tank cars per month. They utilized 12 gallons of solvent, and two employees worked 20 days per month, 8 hours a day. The company decided to switch to a larger cleaning machine. Last April, they cleaned 60 tank cars in only 15 days. They utilized 15 gallons of solvent, and the two employees worked 8 hours a day. (a) What was their raw material and their labor productivity with the standard equipment? (b) What is their raw material and their labor productivity with the larger machine? (c) What is the change in each productivity measure? I 2) [1 point] (This Question is related to Chapter 1 section The Productivity Challenge) The Dulac Box plant produces wooden packing boxes to be used in the local seafood industry. Current operations allow the company to make 500 boxes per day, in two 8-hour shifts (250 boxes per shift). The company has introduced some small changes in equipment, and conducted appropriate job training, so that production levels have risen to 400 boxes per shift. These changes did not require any change in the amount of capital spending or energy use. What is the firm's new labor productivity? 3) [1 point] (This Question is related to Chapter 1 section The Productivity Challenge) The local fast-food store experienced the following number of customers on the night shift: Hour Customers 12 AM 35 1 AM 28 2 AM 15 3 AM 5 4 AM 2 5 AM 1 If the store was staffed by three workers, what was the average productivity per worker, in customers/hour