Windows 7 offers a feature in Windows Explorer that shows checkboxes which can be selected in order to move, delete, or copy files

A large company pays its salespeople on a commission basis. The salespeple each receive $200 per week plus 9% of their gross sales for that week. For example, a salesperson who sells $5000 worth of chemicals in a week receives $200 plus 9% of $5000, or a total of $650. Develop a C++ program that uses a while statement to input each salesperson’s gross sales for last week and calculates and displays that salesperson’s earnings. Process one salesperson’s figures at a time.

a) Account number (an integer) b) Balance at the beginning of the month c) Total of all items charged by this customer this month d) Total of all credits applied to this customer's account this month e) Allowed credit limit ``` Enter sales in dollars (-1 to end): 5000.00 Salary is: $650.00 Enter sales in dollars (-1 to end): 6000.00 Salary is: $740.00 Enter sales in dollars (-1 to end): 7000.00 Salary is: $830.00 Enter sales in dollars (-1 to end): -1 ```

A pie chart or a column chart is used to show ____.

A. a correlation between variables B. a total quantity rather than to emphasize a portion of data C. quantitative data as a percentage of the whole D. a comparison of trends or changes over time