Amunicipal bond is paying a 6 percent annual yield. an equivalent risk corporate bond is paying 7 percent. investors with a tax rate of or higher would prefer the municipal bond.

what

explanation:

answer; by looking at total product,marginal product,and changes in both after changes in inputs

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.