Lindstrom Company produces two fountain pen models. Information about its products follows: Sales revenue Lesst Variable costs Contribution margin Total units sold Product A $120,000 52,800 $ 67,200 5,000 Product B $170,000 52,700 $117,300 5,000 Lindstrom's fixed costs total $83,000 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 $110,000 profit. 4. Calculate Lindstrom's margin of safety and margin of safety as a percentage of sales if it sells 8,900 total pens