Consumer Protection Acts on Marketing Functions

Marketing must not be misleading or deceptive, for example, suppliers must not: give untrue characteristics about themselves, or their goods or services; or. ... A supplier must advertise goods or services only if they are available and can be supplied.

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.