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please post the right answer. I will give a good rate . thanks

Exercise 5-1 (Algo) The Effect of Changes in Sales Volume on Net Operating Income [LO5- Whirly Corporation's contribution format income statement for the most recent month is shown below: Required: (Consider each case independently): 1. What would be the revised net operating income per month if the sales volume increases by 80 units? 2. What would be the revised net operating income per month if the sales volume decreases by 80 units? 3. What would be the revised net operating income per month if the sales volume is 7,000 units? Exercise 5-13 (Algo) Changes in Selling Price, Sales Volume, Variable Cost per Unit, and Total Fixed Costs [LO5-1, LO5-4] Miller Company's contribution format income statement for the most recent month is shown below: Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 14% ? 2. What is the revised net operating income if the selling price decreases by $1.30 per unit and the number of units sold increases by 18% ? 3. What is the revised net operating income if the selling price increases by $1.30 per unit, fixed expenses increase by $7.000, and the number of units soid decreases by 7% ? 4. What is the revised net operating income if the selling price per unit increases by 10%, variable expenses increase by 10 cents per unit, and the number of units sold decreases by 7%