If diminishing marginal returns have already set in for Danica's Dog Training Emporium and the marginal product of the fifth dog trainer is 18, then the marginal product of the fourth dog trainer must be:

A) negative.
B) zero.
C) less than 18.
D) greater than 18.

Suppose that real interest rates increase across europe. this development will u. s. net capital outflow at all u. s. real interest rates. this causes the loanable funds to because net capital outflow is a component of that curve.

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis. b)reject the null hypothesis and conclude the mean is higher than $6,000 per day. c)reject the null hypothesis and conclude the mean is lower than $6,000 per day. d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day. expert answer

Salaries are $4,500 per week for five working days and are paid weekly at the end of the day fridays. the end of the month falls on a thursday. the accountant for dayton company made the appropriate accrual adjustment and posted it to the ledger. the balance of salaries payable, as shown on the adjusted trial balance, will be a (assume that there was no beginning balance in the salaries payable account.)