Shirley Macuga is the world’s fastest typist and is also a world famous brain surgeon. She earns $5,000/hour operating on brains. Shirley can type her bills for a whole month’s worth of surgery in 30 minutes and yet Shirley hires a billing clerk to complete the surgery bills. The clerk requires all month to type the bills. The clerk is paid $2,000 per month. Is Shirley smart to hire the billing clerk? Why or why not?

Yes

Explanation:

30 mins of typing would have an opportunity cost of $2500 of surgery

She's paying $2000 and earning $2500.

So she is smart

answercombination of ability and experience of the partners;

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.