Beginning inventory, purchases, and sales for 30xT are as follows: Assuming a perpetual inventory system and using the weighted average method, determine (a) the weighted average unit cost after the...

Beginning inventory, purchases, and sales for 30xT are as follows:

Assuming a perpetual inventory system and using the weighted average method, determine (a) the weighted average unit cost after the May 23 purchase, (b) the cost of the merchandise sold on May 26, and (c) the inventory on May 31.