Answer the next four questions based on the following data using year 1 as the base year. All dollars are in billions. Year Nominal income Price Index 1 $3, 166 100 2 3,402 104 3 3,774 108 4 3,989 112 (a) Find real income in year 4. (b) What was the percentage rise in prices between years 1 and 3? (c) What was the percentage rise in prices between years 2 and 4? (d) What was the increase in real income from year 3 to year 4 in %? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). B I U S Paragraph V Arial 10pt V v A v V IX