Answer:
Cost of loaf of bread in 1983 is 90 cents
Explanation:
Mathematically;
CPI = Cost of market in given year/cost of market in base year * 100
From the question,
CPI = 323
cost of market in given year =2.89
cost of market in base year = ?
323 = 2.89/c * 100
323c = 289
c = 289/323
c = 0.8947
which is approximately 90 cents