please show work.

1. The following indices represent the price and annual quantity consumed for various items. a. Develop a simple price index using 1995 as the base period for the items listed. Plot the simple indices on the same chart b. Develop a composite price index for the items using 1995 as the base period for the items listed. Plot the index. c. What is the average annual percentage change for the indices in parts a,b ? 2. Describe the difference between CPI and producer price index 3. In your own words, describe the utility of index numbers and what they illustrate