First thing is to multiply 3 by x and get 3x,then 3 by 4 equals 12. 3x+12....6x=3x+12...subtract 3x from 6x and get 3x=12..then divide 3 on both sides and 3x crosses out.. and x=4...this is what I have to say about this..
Answer:
A is correct
Step-by-step explanation:
Because if you imagine a number for Toby like 720. His would double while violet's will only go by 20
B .....,,,..,....,,..,,..,..
Step-by-step explanation:
The Circumference is:

Radius r is:

So,
