Ageneral property of the eoq inventory model is that total inventory holding and total ordering costs are equal at the optimal solution. use the data in problem one to show that this result is true. use equations (10.1), (10.2), and (10.3) to show that, in general, total holding costs and total ordering costs are equal whenever q* is used.

"jake’s roof repair has provided the following data concerning its costs: fixed cost per month cost per repair-hour wages and salaries $ 20,900 $ 15.00 parts and supplies $ 7.70 equipment depreciation $ 2,800 $ 0.35 truck operating expenses $ 5,720 $ 1.60 rent $ 4,690 administrative expenses $ 3,850 $ 0.50 for example, wages and salaries should be $20,900 plus $15.00 per repair-hour. the company expected to work 2,600 repair-hours in may, but actually worked 2,500 repair-hours. the company expects its sales to be $47.00 per repair-hour. required: compute the company’s activity variances for may."