3) A company uses flexible budgets that are based on the following data: 110% of sales Sales commissions Advertising expense 25% of sales Miscellaneous selling expense Office supplies expense $400 per month plus 13% of sales 30% of sales Miscellaneous administrative expense $225 per month plus 2% of sales $1,500 per month Office salaries expense Required: Prepare a flexible selling and administrative expenses budget for a month using projected sales volumes of $7,500, $10,000, $12,500, and $15,000 (use Exhibit 5 on page 987 as a model).