The units of Manganese Plus available for sale during the year were as follows:

There are $15$ units of the product in the physical inventory at November $30.$ The periodic inventory system is used.

a$.$ Determine the inventory cost using the FIFO method.

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b$.$ Determine the inventory cost using the LIFO method.

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c$.$ Determine the inventory cost using the weighted average cost methods. Round interim calculations and final answer to two decimal places.

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