Kramer has 2 tests tomorrow (Econ and Nutrition) and has exactly 4 hours to study. His grade possibilities curve is based on the following:
a. Carefully graph the grade possibilities curve
b. In terms of grades, what is the opportunity cost of improving Kramer's Econ grade from an F to a D?
c. In terms of grades, what is the opportunity cost of improving his Nutrition grade from a D to a C?
d. Kramer's friend, Newman, is an Econ whiz but knows nothing about nutrition (he is helpful with Econ but no help in Nutrition). Newman decides to help Kramer study during these 4 hours. Draw a new plausible grade possibilities curve (in dashes - - - - -) that includes Newman's help (label it "Newman").