12.9 i think, not sure. try it though
The first friend your very welcome
I'm not real sure if this is right but I did my best
In the first table, y = 4x. So y is proportional to x.
In the second table, y is not proportional to x.
In the third table, 2y = 3x. So, y is proportional to x.
Answer:
The answer is 4a
Step-by-step explanation:
1) Simplify 4a² + 12a² to 16a².

2) Use this rule:


3) Since 4 × 4 is 16, the square root of 16 is 4.

4) Simplify.

<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>4a</u><u>.</u>