A person's earnings over a period of time is known as

If the CPI was 90 in 1975 and is 225 today, then $100 today purchases the same amount of goods and services as

a. $25.00 purchased in 1975. b. $33.33 purchased in 1975. c. $40.00 purchased in 1975. d. $135.55 purchased in 1975.

Hillary starts her own business. She quits her $50,000 a year job, rents an office for $15,000 a year, pays wages and salaries of $50,000 a year, utilities of $4,000 a year, and materials of $20,000. She uses her own car for sales work rather than

leasing an equivalent car for $6000 a year. If revenues are $140,000, her accounting profit and economic profit are respectively A) $45,000 and $1,000. B) $51,000 and $5,000. C) $51,000 and -$5,000. D) $45,000 and $51,000.