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Lindstrom Company produces two fountain pen modeis. Information about its products follows: Lindstrom's fixed costs total $81,500 Required: 1. Determine Lindstrom's weighted-average unit contribution margin and weighted-average contribution margin ratio. 2. Calculate Lindstrom's break-even point in units and in sales revenue. 3. Calculate the number of units that Lindstrom must sell to earn a $150,000 profit. 4. Calculate Lindstrom's margin of safety (in units and sales dollars) and margin of safety as a percentage of sales based on the sales data provided in the table above. SalesrevenueLess:VariablecostsContributionmarginTotalunitssoldProductA$75,60036,900$43,5005,000ProductB$124,40051,800$88,5005,000