Which of the following is the best example of a good debt strengthening your financial security?

Paying debt on time, to increase trust among the lender and borrower, investing in one self that would yield more positive result over time.

Explanation:

An example of  good debt that an strengthening one's financial security is   buying things that save you time and money, buying essential items, investing in yourself by borrowing for more education or to consolidate debt out a mortgage,  

Another example of a good debt is sticking to your budget can contribute to payments paying off good and paying debt on time and.  when you pay on time what you owe  helps increase your credit score better over period of time, because it shows lenders you have the ability to pay back what you borrow on time.

answerall of these;

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.