Could please answer the questions and explain

The accompanying table shows the price and yearly quantity sold of good X in the town of Caldwell City according to the average income of the citizens of the town. Quantity of good X Quantity of good X demanded when average demanded when average uer unit of _ood X income is $40 000 income is $60 000 S3 58,000 40,000 54,000 37,000 50,000 34,000 46,000 31,000 Use this information to answer the following questions: a. Using the midpoint method, calculate the income elasticity of demand when the price of a good X is $4 per unit and the average income decreases from $60,000 to $40,000. (Round to two decimal places) b. Is the income elasticity of demand for good X in Caldwell City elastic or inelastic over this range? Would good X be considered a normal or inferior good? Briey explain. c. If average incomes in Caldwell City increased from $40,000 to $60,000 what would happen to the demand curve for good X? Briey explain your reasoning. (Note: you do not need to include a graph, just use words)