Answer: 130
Step-by-step explanation:
Plug in 3 for x
Answer:

Step-by-step explanation:

Add
to both sides:


Subtract 2 from both sides:


Divide both side by 2:


So first of all you know that one side is 14cm and the other side is 6cm
What you would do is: 14-6=???
Your answer should be: 8cm
Scale factor is 2
30/15 = 2
20/10 = 2
Answer:
https://www.khanacademy.org/
Step-by-step explanation:
I am not entirely sure what you mean however if you sign up for this website and go to whichever grade level you need you can practice all you want