9. A slice of pizza cost $2.50 in 2015. If the CPI in 2015 was 88 and the CPI today is 108, what is the equivalent price for the slice of pizza today? 10. If the size of the labor force is 825 and 725 people are employed, what is the unemployment rate? 11. If the size of the labor force is 2,500 and 125 people are unemployed, what is the unemployment rate? 12. If the unemployment rate is 12%, what is the employment rate