Thunder Creek Company's variable supplies expense per month is $3.00 per unit. The fixed selling and administrative expenses per month consist of Salaries: $245,000; Advertising: $30,000; and Depreciation: $28,000 Prepare a Selling and Administrative Expense Budget. (When entering answers in the selling and administrative budget, use the sales budget for your cell references.) Thunder Creek Company's variable supplies expense per month is $3.00 per unit. The fixed selling and administrative expenses per month consist of Salaries: $245,000; Advertising: $30,000; and Depreciation: $28,000 Prepare a Selling and Administrative Expense Budget. (When entering answers in the selling and administrative budget, use the sales budget for your cell references.)