just do a and b please

Dakota Security Systems (DSS) is a decentralized organization that evaluates divisional management based on measures of divisional contribution margin. Residentlal Division and Commerclal Division both sell security and monitoring equipment. Residential sells primarily to home owners and apartment management companles. Commerclal focuses on small to medium-sized businesses. Residentlal sells a particular alarm to the outside market for $258 per unit. The outside market can absorb up to 48,650 units per year. These units require 3 direct labor-hours each. If Residential modifies the units with an additional 0.75 hour of labor time, It can sell them to Commercial for $285 per unit. Commercial will accept up to 41,700 of these units per year. If Commerclal does not obtain 41,700 units from Residentlal, It purchases them for $294 each from the outside. Commerclal Incurs $150 of additional labor and other out-of-pocket costs to convert the alarm (elther from Residentlal or outside) into one that fits in an existing Commercial Division system. The units can be sold to the outside market for $654 each. Residential estimates that its total costs are $1,499,000 for fixed costs, $48.00 per direct labor-hour, and $21.60 per alarm for materlals and other varlable costs besides direct labor. Its capacity is limited to 229,500 direct labor-hours per year. Required: Determine the following: a. Total contribution margin to Residential If it sells 48,650 units outside. b. Total contribution margin to Residential If it sells 41,700 units to Commerclal. c. and d. The costs to be considered in determining the optimal company policy for sales by Residential. The annual contributions and costs for Residential and Commercial under the optimal policy. Complete this question by entering your answers in the tabs below. Determine the total contribution margin to Residential if it sells 48,650 units outside. Dakota Security Systems (DSS) is a decentralized organization that evaluates divisional management based on measures of divisiona contribution margin. Residentlal Division and Commercial Division both sell security and monitoring equlpment. Residential sells primarily to home owners and apartment management companies. Commercial focuses on small to medium-sized businesses. Residentlal sells a particular alarm to the outside market for $258 per unit. The outside market can absorb up to 48,650 units per yeal These units require 3 direct labor-hours each. If Residential modifies the units with an additional 0.75 hour of labor time, It can sell them to Commercial for $285 per unit. Commercia will accept up to 41,700 of these units per year. If Commerclal does not obtain 41,700 units from Residential, it purchases them for $294 each from the outside. Commercial Incurs $150 of additional labor and other out-of-pocket costs to convert the alarm (elther from Residential or outside) Into one that fits in an existing Commerclal Division system. The units can be sold to the outside market for $654 each. Residential estimates that its total costs are $1,499,000 for fixed costs, $48.00 per direct labor-hour, and $21.60 per alarm for materlals and other varlable costs besides direct labor. Its capacity is limited to 229,500 direct labor-hours per year. Required: Determine the following: a. Total contribution margin to Residential If it sells 48,650 units outside. b. Total contribution margin to Residential if it sells 41,700 units to Commercial. c. and d. The costs to be considered in determining the optimal company policy for sales by Residential. The annual contributions and costs for Residential and Commercial under the optimal policy. Complete this question by entering your answers in the tabs below. Determine the total contribution margin to Residential if it sells 41,700 units to Commercial