Please solve the bottem of the picture. (please explain one by one detail answer )

1st pic : question

2nd pic : need to answer.

Thank you very much!!!

E2-7 FIFO costing Using first-in, first-out; perpetual inventory costing; and the fol- lowing information, determine the cost of materials used and the cost of the July 31 inventory: July 1 Balance on hand, 1,000 yd of linen@$4.00 each. LO3 3 Issued 250 yd. 6 10 11 5 Received 500 yd $4.50 each. Issued 150 yd. Issued 110 yd. Factory returned 10 yd, which were issued on the 10th, to the storeroom. 15 Received 500 yd$5.00 each. 20 Returned 300 yd to the vendor from the July 15 purchase. 26 Issued 600 yd