MPY LEd makes and sells two types of shoes ,' Plain and Fancy . Product data is as follows : Plain Fancy . Unit selling price* $20. 00 $35. 00

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MPY LEd makes and sells two types of shoes ,'Plain and Fancy . Product data is as follows :PlainFancy .Unit selling price*$20. 00$35. 00Variable costs per unit$12.00$24.50Sixty - five per cent of the sales in units are Plain*and annual fixed expenses are $57, 375 .Assuming that the sales mix remains constant .and an income tax rate of 20 percent , howmany units of Plain must MPY Led sell to earn anafter tax profit of $ 18 , 000 ?)