You add up all the numbers then divide the total by how many numbers you had originally
The equation of a direct variation is of the form

But the given function can be rewritten as

This is a partial variation,

is the constant of variation and

is the fixed constant.
Answer:
A
Step-by-step explanation:
Answer:
What do you need?
Step-by-step explanation:
4/7 = 12/21
12/21 = x + 3/21
9/21 = x
Hope this helped!!