Identifying cost behaviorAt the various activity levels shown Johnston Company i

Identifying cost behaviorAt the various activity levels shown Johnston Company incurred the following costs.Units Sold20406080100a.Depreciation cost per unit240.00120.0080.0060.0048.00b.Total rent cost3200.003200.003200.003200.003200.00c.Total cost of shopping bags2.004.006.008.0010.00d.Cost per unit of merchandise sold90.0090.0090.0090.0090.00e.Rental cost per unit of merchandise sold36.0018.0012.009.007.20f.Total phone expense80.00100.00120.00140.00160.00g.Cost per unit of supplies1.001.001.001.001.00h.Total insurance cost480.00480.00480.00480.00480.00i.Total salary cost$1200.00$1600.00$2000.00$2400.00$2800.00j.Total cost of goods sold1800.003600.005400.007200.009000.00RequiredIdentify each of these costs as fixed variable or mixed.