and each basebali tars a conribution margin of $3.00. The sewing mochine can make 10 soltbats ar 25 basebials in one hour: A. If demand for both products is unianted and the sowing machine capacty cannot be expinded. Colcuate the Contribution margruhour for each product. Which prodikt should be protuced? 13. If demand for each bull is himited to 7,000 balls and there are 800 hours wailable on the machine, how many of each product should be produced