The range to the left of the midpoint on a linear demand curve is

A productivity slowdown was observed from the

A) early 1950s to the late 1960s. B) early 1960s to the early 1970s. C) late 1960s to the early 1980s. D) mid-1980s to the late 1990s.

If the annual interest rate is 0%, the net present value of receiving $550 in the next year is

a. $550 b. $551 c. $549 d. $500