Georgia uses the high-low method of estimating costs. Georgia had total costs of $44,300 at its lowest level of activity, when 5,200 units were sold. When, at its highest level of activity, sales equaled 13,200 units, total costs were $84,300. Georgia would estimate variable cost per unit as: $5.00 $8.52 $6.39 $6.99 Sparrow, Inc. used the high-low method to estimate that its fixed costs are $308,570. At Its low level of activity, 104,600 units, average cost was $4.10 per unit. What would Sparrow predict as its variable cost per unit? O $4.10 $2.20 $2.95 $1.15 Holly Co. uses the high-low method. It had an average cost per unit of $18 at its lowest level of activity when sales equaled 7,000 units and an average cost per unit of $6.50 at its highest level of activity when sales equaled 30,000 units. Holly would estimate fixed costs as: O $105,000 $24.5 $126,000 $12.25 McNeil uses the high-low method of estimating costs. McNeil had total costs of $54,000 at its lowest level of activity, when 4,000 units were sold. When, at its highest level of activity, sales equaled 9,000 units, total costs were $77,500. What would McNeil estimate its total cost to be if sales equaled 8,300 units? O $89,200 $52,200 $74,210 $39,010