Please help me with what to type in each cell. I am especially confused about the concatenate functions. Please help

6. Switch to the Construction Paper tab. 7. Use the CONCATENATE function to enter LIFO Inventory Balance in cell A17. 8. Enter a formula in cell B17 to calculate the ending inventory balance for construction paper under the LIFO method. 9. In cell A18, use the CONCATENATE function to enter FIFO Inventory Balance. 10. Enter a formula in cell B18 to calculate the ending inventory balance for construction paper under the FIFO method. 11. In cell A19, use the CONCATENATE function to enter WA Inventory Balance. 12. Enter a formula in cell B19 to calculate the ending inventory balance for construction paper under the weighted average method. 13. Enter a formula in the appropriate location on the Inventory Listing tab to display the fifth-year LIFO inventory balance for construction paper. 14. Apply the 3 Symbols (Uncircled) icon set and Red - White - Green color scale to the range K5:K62. H23 fic D E F. G A B 1 Construction Paper 2 Inventory Costing Method Comparison Units in Ending Inventory: 571 4. Methods to be used: 5 Last-In, First-Out 6 First-In, First-Out 7 Weighted Average 8 Units 490 127 Cost per Unit Total $ 14 $ 6,860 $ 15 $ 1,905 $ 17 $ 4,080 $ 18 $ 1,530 $ 19 $ 9,595 $ 23,970 240 85 505 1447 9 10 Beginning Inventory 11 Purchase #1 12 Purchase #2 13 Purchase #3 14 Purchase #4 15 16 17 18 19 20 21 22 23 24