Your​ school's talent show will feature 12 solo acts and 3 ensemble acts. The show will last 117 minutes. The 6 solo performers judged best will give a repeat performance at a second 75-minute​ show, which will also feature the 3 ensemble acts. Each solo act lasts x​ minutes, and each ensemble act lasts y minutes. Use this information to answer parts ​(a) and ​(b).