the consumer price index measures the cost in current dollars of a certain consumer basket(combination of goods).we suppose that the basket in question is composed of these items: 4 cups of coffee,2 pieces of cake,2 liters of milk and internet service.

these were the prices for these items in the 2017: cup of coffee 1.50$,piece of cake 3$,liter of milk 1.50, internet service 15$

these were the prices for these items in the 2018:cup of coffee 2$,piece of cake 3$,liter of milk 2, internet service 12$

these were the prices for these items in the 2019:cup of coffee 2$,piece of cake 4$,liter of milk 2.50, internet service 10$

a)calculate the consumer index for the years 2017,2018,2019

b)what was the inflation rate of 2017 to 2017

c)what was the inflation rate of 2018 to 2019