Kindly answer questions 4,5,6 and not handwritten

Styles Fon! 1 13 1 14 15 16 Paragraph AT234T5 6 7 8 9 10 1011 12 Topic: Operating Leverage Calculation 4. Dippin Cookie Corporation had the following income statement for 2020 Sales Less variable costs Contribution margin Less fixed costs Net income $25,000 (15,000) $10,000 (8,000) $ 2.000 Dippin Cookie's 2020 operating leverage is Topic: Operating Leverage Calculation 5. The Happy Corporation has the following data for 2020 $5 Selling price per unit Variable costs per unit Fixed costs Units sold $10,000 6,000 Happy's 2020 operating leverage is 6. Topic: Analysis Using Contribution Margin Ratio The following information is available for Spruce Corporation for a sales volume of 500 stereo speakers for the past month Sales Less: Variable expenses Contribution margin Less: Fixed expenses Net operating income Total $112,500 40.000 72,500 17500 $ 55.000 Per Unit $225 80 $145 If sales increase by $51,750, net income will increase by what amount