In allocating time between studying French and studying economics,
a. exam points are inferior goods
b. we can think of students "buying" exam points with hours spent studying
c. we can think of students "buying" exam points with money
d. the demand curve for exam points is upward sloping
e. we can think of students "buying" study time for cash
B
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Which of the following is the correct way to compute the future value of $X that earns r percent interest for N years?
a. $X(1 + rN)N b. $X(1 + r)N c. $X(1 + rN) d. $X(1 + r/N)N
Refer to the information provided in Figure 15.2 below to answer the question(s) that follow. 
Figure 15.2 Refer to Figure 15.2. In this monopolistically competitive industry, in the long run
A. firms will suffer economic losses profits. B. demand for the product will increase so that profits are increased. C. product supply will decrease so prices will go up. D. firms will enter until all firms break even economically.