The following table illustrates the grades a student can earn on examinations in economics and biology if the student uses all available hours for study. N Economics Biology eco 100 40 90 60 80 75 70 85 60 93 50 98 40 100 1. Does the PPC illustrate the law of increasing opportunity cost? How do you know? eco 2. What is the opportunity cost to this student of allocating enough additional study time on economics to move her grade up from a 90 to a 100? Consider a change in the table above so it now looks like this: Economics Biology 100 40 90 50 80 60 70 70 60 80 50 90 40 100 3. Does the PPC illustrate the law of increasing opportunity cost? How do you know? 4. What is the opportunity cost to this student for the additional amount of study time on economics required to move her grade from 60 to 70? 5. What is the opportunity cost to this student for the additional amount of study time on economics required to move her grade from 90 to 100