8. Which of the following statements are true of the aggregate supply curve? Options
a -The aggregate supply curve describes the relationship between the quantity of output supplied in the short run and the price level.
b -The aggregate supply curve shifts leftward when costs of production increase.
c-The aggregate supply curve shifts rightward when costs of production decrease
d- All of the above

"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):

Define the marginal rate of substitution between two goods (x and y). if a consumer’s preferences are given by u(x,y) = x3/4y1/4, compute the consumer’s marginal rate of substitution as a function of x and y. calculate the mrs if the consumer has chosen to consumer 48 units of x and 16 units of y. show your work. (use the back of the page if necessary.

The mayflower, a seafood restaurant, had the following liabilities by the end of 2015: accounts payable $60,000 wages payable $100,000 unearned revenue $125,000 (60% will be earned in 2016) notes payable $140,000 ($45,000 payable in 2016) what is the amount that the mayflower should report as total current liability on its balance sheet as of december 31, 2015?