A company pays $20,000 for the rights to a well with 5 million gallons of water. If the company extracts 250,000 gallons of water in the first year, what is the total depletion in year 1

$1,000

Explanation:

The cost of the well is $20,000

The capacity of the well is 5 million gallons

The cost of one gallon is therefore:

= Cost of all gallons / Number of gallons

= 20,000 / 5,000,000

= $0.004

If 250,000 gallons were extracted in the first year, the depletion is:

= Number of gallons extracted * Cost per gallon

= 250,000 * 0.004

= $1,000

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.