During the campus spring fling, the bumper car amusement attraction has a problem of cars becoming disabled and in need of repair. repair personnel can be hired at the rate of $20 per hour, but they only work as one team. thus, if one person is hired, he or she works alone; two or three people work together on the same repair.
one repairer can fix cars in an average time of 30 minutes. two repairers take 20 minutes, and three take 15 minutes. while these cars are down, lost income is $30 per hour. cars tend to break down at the rate of 1.40 per hour. management is trying to decide how many repair persons to hire, and has asked you for cost data.
a. what is the total hourly cost with one repair person? (round your intermediate calculations and final answer to 2 decimal places.)
total cost per hour $ (i somehow got $85, which was correct)
b. what is the total hourly cost with two repair persons? (round your intermediate calculations and final answer to 2 decimal places.)
total cost per hour $
c. what is the total hourly cost with three repair persons? (round your intermediate calculations and final answer to 2 decimal places.)
total cost per hour $

The hawthorne works was a large western electric factory with 45,000 employees. during the 1920s and 1930s, hawthorne works was the site of some well-known industrial studies. in one of the studies, researchers investigated the impact of different working conditions on worker productivity. prior to the start of the study, researchers secretly measured workers' productivity for several weeks. then researchers chose two workers, who then chose their own teams. the teams were separated from the general workforce and completed their work in different experiment rooms where the researchers could observe them more easily. over a 5-year period researchers manipulated the structure of the workday for each team (number and duration of breaks and number of hours per shift). for each of these changes in working conditions, the researchers measured the effect on productivity. for some conditions, such as frequent short breaks, workers rebelled by intentionally decreasing productivity.why did the researchers secretly measure the workers' productivity before creating the two treatment groups? a, to create similar treatment groups so that a cause-and-effect relationship could be establishedb, to draw conclusions about the productivity of all workers in the plant based on the test groupsc, to directly control for confounding variablesd, to provide a baseline for measuring worker productivity

During 2016, nike inc., reported net income of $3,760 million. the company declared dividends of $1,022 million. the closing entry for dividends would include which of the following? select one: a. credit cash for $1,022 million b. credit dividends for $1,022 million c. debit net income for $1,022 million d. credit retained earnings for $1,022 million e. debit dividends for $1,022 million

The following information is needed to reconcile the cash balance for gourmet catering services. * a deposit of $5,600 is in transit. * outstanding checks total $1,000. * the book balance is $6,400 at february 28, 2019. * the bookkeeper recorded a $1,800 check as $17,200 in payment of the current month's rent. * the bank balance at february 28, 2019 was $17,410. * a deposit of $400 was credited by the bank for $4,000. * a customer's check for $3,300 was returned for nonsufficient funds. * the bank service charge is $90. what was the adjusted book balance?