These are 6 questions that i got wrong in my test. i wanted to ask for reference purposes)

1) The market will be in equilibrium if ________ is set ________ the equilibrium price:

How?

A) actual price; above

B)a price ceiling; below

C) a price floor; below

D) actual price; below

2) The economy moves from point A, where it produces 100X and 200Y, to point B, where it produces 200X and 150Y. It follows that

A) point A and point B both are located on the production possibility frontier

B) point A may be an inefficient point.

C) point B is an inefficient point.

D) point A may be an efficient point.

I really wanted to know what answer in D is incorrect?

3) If the seller of good X raises the price of good X, it follows that the total revenue of good X will __________, if demand is __________.

A) rise; inelastic.

B) fall; unit elastic.

C) rise; elastic

D) fall; inelastic

4) A surplus will occur if a ________ is set ________ the equilibrium price.

A) price ceiling; below

B) price ceiling; above

C) price floor; below

D) price floor; above

5) Which of the following statements is true?

A) Average total cost equals average variable cost minus average fixed cost.

B) If the marginal cost curve is above the AFC curve, the AFC curve must be rising.

C) As output increases, the average variable cost curve gets closer to the average total cost curve.

D)The AFC curve is horizontal as output increases.

6) Is true According to the law of demand there is a negative causal relationship between price and quantity demanded, ceteris paribus?