Q: 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?
A: 45
Explain how we arrive at this answer: 
Explanation: 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.