How are the specific interest rates for the lending and borrowing markets determined?
a. u. s. treasury department board policy
b. by the forces of supply and demand
c. through open market operations
d. by altering the discount rate 1 points

i would say their habit of breaking down.

the correct answer is b.)

answer///schedule;

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.