Thexton Manufacturing Company incorporates standards in its accounts and identifies variances at the time the manufacturing costs are incurred. Journalize the entries to record the following transactions:
a. Purchased 1,400 units of copper tubing on account at $49.50 per unit. The standard price is $45.00 per unit.
b. Used 870 units of copper tubing in the process of manufacturing 110 air conditioners. Eight units of copper tubing are required, at standard, to produce one air conditioner.