His math score is low but not by much. Since the doing away with academic admission, it is all up in the air. So many more auto and academic admits being accepted into the university, they had to be placed into majors and were the first to be notified once engineering decisions came out. Very few review applicants received admission before mid January. Now it is wide open.
If your friend’s school offers Calculus BC, take that instead of Calc AB. BC includes principles of AB and goes further.
Your friend also needs to have really good study habits and like/be good at math. The first year Calculus 151 and 152 weed out a lot of kids, if not from engineering, then from their desired major. For the incoming class, the auto acceptance to your preferred major is now 3.75.
Majors are just coming out today and through the week for ETAM applicants who were not auto admits to major. Many have received their first or second choice major. Many others still waiting (Aggie Parents and Aggie Parent of Engineering Students Facebook Pages).