Which answer do you think is correct

Environmentalists are concerned about emissions of sulfur dioxide into the air. the average number of days per year in which sulfur dioxide levels exceed 150 milligrams per cubic meter in milan, italy, is 29. the number of days per year in which emission limits are exceeded is normally distributed with a standard deviation of 4.0 days. what percentage of the years would exceed 37 days?

Considered to be a "super tool" or tool that has high use and high potential for improving project success?

Brian has just finished college. he wants to set up a small business to make and sell fireworks. he registers his company and acquires a license from the government. he finds that most of his competitors are selling fireworks at an extremely low price. he would like to make more money, so he decides to innovate and develop better fireworks. he sells his fireworks at a higher price, and they are a huge hit with the customers. after a few years, he earns enough profit to set up a bigger fireworks factory that complies with the government’s health and safety regulations. he even starts exporting fireworks overseas. which type of economy does this scenario describe?