This problem is about the distance between points, in this case, we have to unidimensional coordinates, that is, point O is at -2, and Point V is at 1/2.
It's important to know that the proper way to find the distance here is by subtraction, we need to subtract the final points and the initial point. In math, such subtraction is called "differential" or "variation", just a fancy name.

<h2>Therefore, the distance from O to B is 2.5 units.</h2>
Answer:
6 servings
Step-by-step explanation:
Each serving Tim uses 1/9 cup. So, after using the amount of syrup reduces and repeated subtraction is division.
÷

= 2 *3
= 6
Answer:
Number of servings left is bottle 
Step-by-step explanation:
The amount of orange juice in a bottle is modeled by the equation
---Eq (1)
Here y = number of ounces of juice in the bottle
and x = number of servings of juice poured from the bottle
Number of servings left is bottle = number of ounces of juice in the bottle -number of servings of juice poured from the bottle
Thus,
Number of servings left is bottle = y -x
Substracting x from both the sides of the above equation, we get - 
Number of servings left is bottle 