25. brubacher company makes four products in a single facility. these products have the following unit product costs: additional data concerning these products are listed below. the grinding machines are potentially the constraint in the production facility. a total of 20,500 minutes are available per month on these machines. direct labor is a variable cost in this company. which products and what quantities should brubacher produce to maximize contribution margin? a) 4000 a; 3000 b; 3000 c; 4000 d b) 4000 a; 3000 b; 3000 c; 1285 d c) 9300 a; 5400 b; 3000 c; 2800 d d) 11200 a; 5400 b; 3000 c; 2800 d e) 3321 a; 3000 b; 3000 c; 4000 d

Quick calculate the roi dollar amount and percentage for these example investments. a. you invest $50 in a government bond that says you can redeem it a year later for $55. use the instructions in lesson 3 to calculate the roi dollar amount and percentage. (3.0 points) tip: subtract the initial investment from the total return to get the roi dollar amount. then divide the roi dollar amount by the initial investment, and multiply that number by 100 to get the percentage. b. you invest $200 in stocks and sell them one year later for $230. use the instructions in lesson 3 to calculate the roi dollar amount and percentage. (3.0 points) tip: subtract the initial investment from the total return to get the roi dollar amount. then divide the roi dollar amount by the initial investment, and multiply that number by 100 to get the percentage.