Refer to the table below. Assume that factors may change demand but are not listed in the table below do not change between the three (3) months, and that donuts and coffee are related goods. Show all work. 1. What is the price elasticity of demand for donuts? 2. What is the price elasticity of demand for coffee? 3. What is the income elasticity of demand for donuts? 4. What is the income elasticity of demand for coffee