Lets say a number line went from -10 to 0 to 10
And there are extra lines between each number

For example:

-1 ? -2
| | |

In this example, is the question mark -1.5?

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)

its 50 miles away from the starting point