Juice 20 15 13 10 57 10 20 7. Snacks . The graph above shows Mary's demand for snacks and juice. Use the graph to answer the following questions: (a) List three points that are on Mary's price-consumption curve. ( b ) Suppose Mary has $20 to spend on snacks and juice. Write down three points on her demand curve for snacks. (c) What is the price elasticity of demand for snacks for Mary? What happens to her spending on snacks as the price of snacks falls? Explain