3 different questions the first one multiple choice the second and third (A,B)just read a question and answer thank you

Sinning Company ha is a contribution margin of$450,000 and a profit of $150,000. If sales increase by 20%, by what percent will profits increase? a, 20% b. 30% c.6096 d, 90% Fill in the unshaded blanks in the following table. 480 units 740 units Total costs: Total variable costs Total fixed costs Total costs S116,160 Costs per unit Variable cost per unit Fixed cost per unit 290.75 Total cost per unit Hines Enterprises had the following cost and production information for August: Units produced 20,000, Units sold 17,000 Direct material Direct labor Variable overhead Fixed overhead $850,000 $425,000 $170,000 $340,000 Variable selling Fixed general & admin $85,000 $75,000 Sales price $180 per unit a. Calculate the total contribution margin for August. b. Calculate the net operating income that would be shown on a contribution margin income statement