When will firms no longer enter or exit the market? When:

Is the competitive equilibrium efficient? 

16) Which one of the following of the following statements is FALSE? A) Science is a process. B) Scientists use the scientific method to gain knowledge about the natural world. C) Because scientific knowledge is empirical, it cannot be tested. D) Knowledge gained through the scientific method can be used to predict the natural world.

What is the  quantity of rice in competitive equilibrium? [1] tons

27) Chlorine has an atomic number of 17 and an atomic mass of 35. Therefore, chlorine has ________ electrons and ________ neutrons. A) 17, 18 B) 18, 17 C) 17, 35 D) 35, 17

#16.  Find the exact area of a disc whose diameter is ft. Formula:

#6. Use the Venn diagram shown below to answer the following questions. Separate the regions with commas. No spaces. List them in increasing order. You may use 1-8 numbers instead of Roman numerals. (a) Which regions are represented by

When Government spending and tax revenues are equal

Which of the following activities generates a positive external effect?

#12. One of the angles in an isosceles triangle is