1.)

Susan can read 30 pages of psychology in an hour. She can also read 20 pages of history in an hour. She spends 6 hours per day studying.

Use the blue line (circle symbol) to draw Susan's production possibilities frontier (PPF) for reading psychology and history.

200 O 180 PPF 160 140 120 100 Psychology Pages 80 60 40 20 0 0 20 40 60 80 100 120 140 160 180 200 History Pages