Answer:
2
Step-by-step explanation:
THE ANSWER IS B BECAUSE I TOOK THIS QUIZ ALREADY
12 divided by 10 is 1.2. 15 multiplied by 1.2 is 18 so x equals 18
Answer:

Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
Let
m ----> the distance in miles (y-coordinate)
h ----> the time in hours (x-coordinate)
In this problem the constant of proportionality k is given and is equal to
----> the speed
substitute
