What was the question for this implicit rationale, and corresponding answer?
First find how many burrs are caught in the dog's fur: 12 burrs * 6 ticks / burr = 72 ticks. Then add the number of burrs to find the total number objects: 72 objects + 12 objects = 84 objects.
 The answer: 84
The question: Andrew's dog has 12 burrs and six times as many ticks as burrs. How many foreign objects total are caught in the dog's fur?