A census helps the CPI in what way? a. It shows who will be unemployed next year
b. It shows which citizens will use the stock market.
c. It shows the purchasing history of citizens by year.
d. It shows the educational level of citizens.

c. It shows the purchasing history of citizens by year.

Explanation:

CPI stands for Consumer Price Index. A census in CPI will provide the data about the changes in average price of customers goods and services that's bought by the households in a country.

A government can know the purchasing history of average citizens by examining the changes in these prices. (If the price increases, it usually indicates that more customers purchases that particular product.)

mauve company permits employees to occasionally use the copying machine for personal purposes

answer; at prices that violate government price regulations;