27. The cost of living index number on a certain date was 200. From the base period the percentage increase in prices were : Rent 60, Clothing 250, Fuel and Light 150 and Miscellaneous 120. What was the percentage increase in the food group ? The weights for different groups were : Food 60, Rent 16, Clothing 12, Fuel & Light 8, Miscellaneous

For three consecutive years the tuition of an university increased by 15%, 11%, and 9%, respectively. What was the overall percentage increase of tuition during the three-year-period?

Find the average costs of the following dollar amounts: $13.78,$10.67,$5.23,$1.21,$56.90,$3.75

The average annual cost of living in Illinois, California, and Oregon are displayed in the table below:   State Average Annual Cost of Living Illinois $58,000 California $70,000 Oregon $64,000 Suppose you are earning a salary of $65,000 per year in Illinois. Your employer asks you to transfer to the California office. Based on the average annual cost of living, what is the lowest possible salary you will accept? Round your answer to the nearest whole dollar. Explain your reasons.

2. A saleswoman will receive 35% commission of her total sales. She makes a total of $6,000. What is the commission that she will receive?