A Closer Look at Decision Makers) Appendix Checkpoint re 1 Popcorn (bags) Cola (cans) . What is the relative price of nuts and what is the opportunity cost of a bag of nuts? Draw a graph of Sara's budget line with nuts on the x axis. What quantities of popcorn and nuts does Sara buy and what is her marginal rate o substitution of popcorn for nuts at her consumption point? Suppose that the price of nuts falls to $1.50 Sara's budget remain unchanged buy now? What are two points on Sara's demand curve for nuts? a bag and the price of popcorn and . What quantities of popcorn and nuts does Sara 45