. Cook Co.'s total costs of operating five sales offices last year were $500,000, of which $70,000 represented fixed costs. Cook has determined that total costs are significantly inuenced by the number of sales ofces operated. Last year's costs and number of sales offices can be used as the bases for predicting annual costs. What would be the budgeted cost for the coming year if Cook were to operate seven sales offices? a. $700,000 b. $672,000 c. $602,000 d. $586,000