He could be using either his bicycle, scooter, and the car. He could also be at either the school, garden or theatre. There are 3 possible methods of his transportation and places he could be. So Your Answer is 3.
Answer:

Step-by-step explanation:
-> Apply log rules

->

-> Apply basic math rules

Range=highest number-lowest number
15-5=10
Range=10
The store sold 206 sociology textbooks and 103 history textbooks.