Economist call a person who does not pay for a good or service they consume

For a single-price monopolist,

A) MR = P. B) MR < P. C) MR first increases and then decreases with the quantity sold. D) MR first decreases and then increases with the quantity sold.

Kristen has an income of $450 per year to spend on music CDs and movies on DVDs. The price of a CD is $15. The indifference curves in the figure above (I1, I2, and I3 ) reflect Kristen's preferences. If the price of a DVD is $22

50, then Kristen buys ________ DVDs; if the price of a DVD is $18.00, then Kristen buys ________ DVDs. A) 12; 14 B) 5; 10 C) 10; 15 D) 7.5; 12.5