A perfectly competitive firm, earning economic profits, produces and sells 100 units of output at a price of $20 per unit. If its marginal cost of increasing output to a rate of 101 units is $18, which of the following statements is correct

A. the total revenue from selling 101 units is the same as the total revenue from selling 100 units.
B. the total profit from selling 101 units is $2 greater than the total profit from selling 100 units.
C. the total cost of producing 101 units is $2 greater than the total cost of producing 100 units.
D. to sell 101 units, the firm must reduce its price below $20. (E) to sell 101 units, the firm must raise its price above $20.

In order to gauge public opinion about how to handle iran's growing nuclear program, a research group surveyed 1010 americans by telephone and asked them to rate the threat iran's nuclear program poses to the world on a scale of 1 to 10. describe the population, sample, population parameters, and sample statistics. identify the population in the given problem. choose the correct answer below.

Your parents have accumulated a $170,000 nest egg. they have been planning to use this money to pay college costs to be incurred by you and your sister, courtney. however, courtney has decided to forgo college and start a nail salon. your parents are giving courtney $20,000 to her get started, and they have decided to take year-end vacations costing $8,000 per year for the next four years. use 8 percent as the appropriate interest rate throughout this problem. use appendix a and appendix d for an approximate answer, but calculate your final answer using the formula and financial calculator methods. a. how much money will your parents have at the end of four years to you with graduate school, which you will start then?

Your grandmother told you a dollar doesn't go as far as it used to. she says the purchasing power of a dollar is much lesser than it used to be. explain what she means. try and use and explain terms like inflation and deflation in your answer.