Struggling with these 4 help please

A company's contribution margin per unit is $25. If the company increases its activity level from 200 units to 350 units, how much will its total contribution margin increase? (7A. $3,750 (73. $8,750 0c. $1,250 ()0. $5,000 Carr Company provides human resource consulting services to small- and medium-sized companies. Last year, Carr provided services to 800 clients. Total fixed costs were $540,000 with total variable costs of $98,400. Based on this information, complete the following chart: 600 clients 900 clients 1,000 clients Total costs Fixed costs $I I $I I $I I Variable costs I I I I I I Total costs $I I $I I $I I Cost per client Fixed cost $I I $I I $I I Variable cost I I I I I I Total cost per client $I I $I I $I I Brahma Industries sells vinyl replacement windows to home improvement retailers nationwide. The national sales manager believes that if they invest an additional $26,000 in advertising, they would increase sales volume by 10,000 units. Sales (6,600 units at $116) $765,600 Variable Costs (6,600 units at $71) 468,600 Contribution Margin $297,000 Fixed Cost 19,500 Net Income (Loss) $277,500 Prepare a forecasted contribution margin income statement for Brahma if they incur the additional advertising costs, using the above information. Forecasted contribution Margin Income Statement ' $C] - Q - $3 - Q ' Q If a company has fixed costs of $6,000 per month and their product that sells for $200 has a contribution margin ratio of 30%, how many units must they sell in order to break even? OA. 200 OB. 2,000 OC. 100 OD. 180