Southton buries their time capsule 15 feet underground. Northton buries their time capsule 12 feet higher than 4 times the depth of the Southton time capsule. How deep is Northton's time capsule buried?
First multiply the depth of Southton's capsule by 4: 15 feet * 4 = 
<gadget id="calculator">15*4</gadget>
<output>60</output>
60 feet.
Then subtract 12 feet to find the depth of Northton's time capsule: 60 feet - 12 feet = 
<gadget id="calculator">60-12</gadget>
<output>48</output>
48 feet.

<result>48</result>