Lizzie Corporation has provided the following information about one of its laptop computers: Date Transaction Number of Units Cost per Unit 1/1 Beginning Inventory 280 $ 980 5/5 Purchase 380 $ 1,080 8/10 Purchase 480 $ 1,180 10/15 Purchase 290 $ 1,230 During the year, Lizzie sold 1,200 laptop computers. What was ending inventory using the FIFO cost flow assumption

"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."