###Human: If Stu has 9 books and Albert has 4 times as many books as Stu, how many books do Stu and Albert have in total?, ### Assistant: Albert has 4 * 9 books belonging to Stu = 36 books.
So the pair have a combined total of 36 books belonging to Albert + 9 books belonging to Stu = 45 books. 
 So the answer is :  45