Zanny electronics corporation uses a standard cost system for the production of its water ski radios. the direct labor standard for each radio is 0.9 hours. the standard direct labor cost per hour is $7.20. during the month of august, zanny's water ski radio production used 6,600 direct labor-hours at a total direct labor cost of $48,708. this resulted in production of 6,900 water ski radios for august. what is zanny's labor rate variance for august?

Bayside began 2014 with an inventory t-account debit balance of $155,000. inventory purchases during the year amounted to $75,000. there were no inventory-related write-downs or losses. what is its december 31, 2014, inventory account balance?

"in my opinion, we ought to stop making our own drums and accept that outside supplier's offer," said wim niewindt, managing director of antilles refining, n.v., of aruba. "at a price of $21 per drum, we would be paying $4.70 less than it costs us to manufacture the drums in our own plant. since we use 70,000 drums a year, that would be an annual cost savings of $329,000." antilles refining's current cost to manufacture one drum is given below (based on 70,000 drums per year):

Which curve shows increasing opportunity cost as you give up more of one option? demand curve bow-shaped curve yield curve indifference curve