help with 2 and 3 please

Casual Essentials, Inc. manufactures two types of team shirts, the Homerun and the Goalpost, with unit contribution margins of $5 and $15, respectively. Regardiess of type, exch team shirts must be fod through a stitching machine to affx the appropriate team logo. The firm lease seven machines that each provides 1,000 hours of machine time per year Each Homerun shirt requires 6 minutes of machine time, and each Goalpost shirt requires 30 minutes of machine time. Assume that a maximum of 47,650 units of each team shirts can be sold. Required: If required, round your answers to the nearest whole number. 1. What is the contribution margin per hour of machine time for each type of team shirt: 2. What is the optimal mix of team shirts? 3. What is the total contribution margin earned for the optimai mix? x