Final answer:
Variables are used to calculate the requested items from the provided data, such as the annual rate of inflation based on a basket of goods. The prices of goods and their weights are key variables in this calculation.
Step-by-step explanation:
To calculate the requested items from the provided data, you would need to use variables.
In the context of calculating the annual rate of inflation, the variables used would typically include the prices of goods and services in a basket, as well as their respective weights, which are based on the actual quantities people buy. These variables would be used in formulas or equations to determine the desired outcomes.