1. The problem statement, all variables and given/known data On the attachment is the answer to one of my questions written next to it as the instructor provided. But I am confused. I understand the first common naming answer, however the second, shouldnt it be 1 methyl, rather than 4, and then 4-(1-methylethyl)? Because with 2 substituents you label in alphabetical order. Am I missing some information that would allow me to label it as my instructor did? Please advise if you can. Thank you in advance.