(18.) Fing Central Live C. HWS Saved Morning Dove Company manufactures one model of birdbath, which is very popular. Morning Dove sells all units it produces each month. The relevant range is 0 to 1,700 units, and monthly production cosis for the production of 1,400 units follow. Morning Dove's utilities and maintenance costs are mixed with the fixed components shown in parentheses. Production Costs: Direct materials Direct labor Utilities ($120 fixed) Supervisor's salary Maintenance ($310 fixed) Depreciation Depreciation Total cost 53,100 6,700 570 3,200 540 700 Required: Identify each cost as variable, fixed, or mixed, and express each cost as a rate per month or per unit (or combination thereof). 2. Determine the total fixed cost per month and the