Price elasticity remains constant along a straight-line demand curve

Total revenue will be at its largest value on a linear demand curve at the

a. top of the curve, where prices are highest. b. midpoint of the curve. c. low end of the curve, where quantity demanded is highest. d. None of the above is correct.

Which of the following is NOT a service?

A) physical labor purchased by a producer B) things purchased by a consumer that do not have physical characteristics C) a diamond used in an engagement ring D) tasks performed by someone else