Help I really need to do this!

Answer: A. 15
Step-by-step explanation:
Let's look at it this way -
An object went 1/20 of the path in 3/4 of a second. Which means that for the object to go the full path it needs to go 20/20 of the path.
3/4 * 20 = 15
20 is the amount of times the object can go in 3/4 of a second.
Answer: The answer is 15 because you have to divide both numbers by each other Hope this Helps!