If the cross elasticity of demand coefficient for potato chips and pretzels equals 1.5:
a. potato chips and pretzels must both be inferior goods.
b. potato chips and pretzels must both be normal goods.
c. potato chips and pretzels must be substitutes

Assume goods X and Y are complements. A decrease in the price of X would cause the demand for Y to increase

Indicate whether the statement is true or false

Bennie's Top Factory produces 1,000 tops per day for a total daily revenue of $2,000 . Bennie's total costs would rise by $2 if it produced the 1,001st top. Because marginal revenue and price are equal and constant,

a. profit would rise by $2 if Bennie produced one additional top b. profit would fall by $2 if Bennie produced one additional top c. profit would not change if Bennie produced one additional top d. profit will fall by some unknown amount if Bennie produced one additional top e. the total cost curve must have shifted to the left