Can you assist me with these questions. It is based on Cost OF Living And Inflation.

I am trying to understand the topic by answering these questions.

It is for a MacroEconomics Course.

REVIEW QUESTIONS 1. When the prices of different goods change at different rates, how do we measure inflation? 2. Are all groups of people affected equally by inflation? Why or why not? 3. What are the major costs of inflation? 4. Which decade, the 1970s, 1980s, or 1990s, saw the high- est average rate of inflation in the United States? Which of these decades saw the lowest average inflation rate