Need help with all parts ASAP please,

The units of Manganese Plus available for sale during the year were as follows: There are 16 units of the product in the physical inventory at November 30 . The periodic inventory system is used. a. Determine the inventory cost by the FIFO method. b. Determine the inventory cost by the LIFO method, $ c. Determine the inventory cost by the weighted average cost methods, Round intermediate calculations and final answe to two decimal places