You are the county commissioner of hazard county. local business leaders are thrilled that ms. daisy has planted a panorama of flowers around her store front designed to look like cute kittens. tourists have been coming from neighboring towns to see the flowers, and this tourism has been increasing business activity for many businesses. the local business leaders would like you to convince ms. daisy to plant more flowers so that tourism continues to increase.
refer to the scenario above. the business generated for other stores by ms. daisy's flower display is an example of a:

positive externality

Explanation:

Positive externalities are events that occur when the production (or the consumption) of a good or service benefits third parties, most of the times involuntarily.

In this scenario, the panorama of flowers planted by Mr. Daisy generated an increase in business activity related to tourists coming to see Ms. Daisy's flowers.

positive externality

Explanation:

Positive Externality occurs when the creation or production of a good causes a benefit to a third party. For example:

A farmer who grows apple trees  for a living provides the beekeeper some benefit. The beekeeper gets a good source of nectar to help make more honey.  

The panorama of flowers planted by Mr. Daisy caused an increase in business activity related to tourists coming to see Ms. Daisy's flowers.

answer; only identify and interpret trends in the marketplace;

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.