Contrast microeconomics with macroeconomics.
Explain the difference between positive and negative externalities.
What information is on a demand curve? What does the line indicate?
Contrast inelastic and elastic demand/supply.
What information is on a supply curve? What does the line indicate?

These questions are from economics.

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Find the solutions for a triangle with a =16, c =12, and b = 63º