wanted to see if my work was correct. please help

The following data relates to Healthy Living in questions 8-10: Healthy Living makes toaster ovens and bread machines. It takes 10 minutes of machine time to produce a toaster oven and 15 minutes of machine time to produce a bread machine. Production capacity is 1,800 of machine hours/month. Io $70 60-16x80 12.8 16x40=6.4 Toaster Ovens Bread Machines ales price $80 $150 ariable costs $40 8) What is the contribution margin per machine hour for toaster ovens? (rounded to the nearest dollar) a) $325 ? 5.6.4: b) 5320 Dsp Sales variable 10. d) $20 9) What is the contribution margin per machine hour for bread machines? Ca) $20 1 21. b) 3240 c) $320 X150 -37.5 d) $7 -2570 = 17.5 10) Healthy Living's production capacity is 1,800 machine hours per month and it can sell as many units of either type as it can produce. How many of each product should the firm produce each month to maximize profits? (a) o toaster ovens and 7,200 bread machines 1940 b) 5,400 toaster ovens and 3,600 bread machines c) 7,200 toaster ovens and 2,400 bread machines d) 10,800 toaster ovens and 0 bread machines SL S 1098 75,600