Bade Midwifery's cost formula for its wages and salaries is $1,230 per month plus $240 per birth. For the month of October, the company planned for activity of 105 births, but the actual level of activity was 101 births. The actual wages and salaries for the month was $26,470. The activity variance for wages and salaries in October would be closest to:

What is the relationship between marginal external cost, marginal social cost, and marginal private cost? a. marginal social cost equals marginal private cost plus marginal external cost. b. marginal private cost plus marginal social cost equals marginal external cost. c. marginal social cost plus marginal external cost equals marginal private cost. d. marginal external cost equals marginal private cost minus marginal social cost. marginal external cost a. is expressed in dollars, so it is not an opportunity cost b. is an opportunity cost borne by someone other than the producer c. is equal to two times the marginal private cost d. is a convenient economics concept that is not real

What term is used to describe the outsourcing of logistics? a. shipper managed inventoryb. hollow logistics(smi)c. sub-logisticsd. e-logisticse. third-party logistics (3pl)

Assume the total cost of a college education will be $250,000 when your child enters college in 17 years. you presently have $69,000 to invest. what annual rate of interest must you earn on your investment to cover the cost of your child’s college education? (do not round intermediate calculations. enter your answer as a percent rounded to 2 decimal places, e. g., 32.16.)