Suppose at the going wage rate of $20 per hour, firms can hire as many hours of janitorial services as they desire. If any firm tries to lower the wage rate to $19, it will not be able to hire any janitor. What does this indicate about the supply curve for janitorial services?
a. Supply is perfectly inelastic.
b. Supply is unit-elastic.
c. Supply is relatively inelastic.
d. Supply is perfectly elastic.

Arival company manufactures fuel tanks for cars using a different production technique. the total weekly cost (in dollars) of producing x tanks is given by c(x) = 10000 +90x - 0.04x2 find the marginal cost at a production level of 500 fuel tanks per week to approximate the cost of the 501st unit (round to the nearest 2 decimal places, if needed)

Select the correct answer. joshua runs a large manufacturing business that is listed on the stock exchange. his company made good profits in the previous financial year. he now plans to reward his shareholders with handsome dividends. under which category of activities in the cash flow statement would the company’s accountants place this outflow of cash? a. investing activities b. operating activities c. financing activities d. non-operating activities

10. which of the following is true regarding preretirement inflation? a. defined-benefit plans provide more inflation protection than defined-contribution plans. b. because of preretirement inflation, possible investment-related growth is increased for defined-contribution plans. c. all types of benefits are designed to cope with preretirement inflation. d. preretirement inflation is generally reflected in the increase in an employee's compensation level over a working career.