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?
Albert has 4 * 9 books belonging to Stu = 
<gadget id="calculator">4*9</gadget>
<output>36</output>
36 books.
So the pair have a combined total of 36 books belonging to Albert + 9 books belonging to Stu = 
<gadget id="calculator">36+9</gadget>
<output>45</output>
45 books.

<result>45</result>