What part of y yards is f feet?

a. f/y
b. 3f/y
c. f/3y
d. y/f
e. 3fy

please answer and explain

To find the answer, we first need to establish the relationship between yards and feet.

There are 3 feet in 1 yard.

Now, let's determine the part of y yards that is f feet.

If 1 yard is equal to 3 feet, then y yards would be equal to 3y feet.

So, the part of y yards that is f feet would be expressed as f/3y.

Therefore, the correct answer is c. f/3y.

To solve this type of problem, you need to understand the conversion between the two units of measurement (in this case, yards and feet) and use that conversion to find the desired relationship.