Answer:
c
Step-by-step explanation:
The answer is 6 since the scale factor is 2 and 3x2 is 6
We are given:

Our goal in solving for any variable, in this case is x, we need to isolate x on one side of the variable. Let's start by subtracting 7x from both sides, which will cancel the +7x on the right side. We are then left with:

Now, we want to move that +10 to the other side so our x is all by itself. Let's subtract 10 from both sides, which will cancel the +10 on the right leaving us with:

Since we cannot have a coefficient when solving for x, we need to divide both sides by -3.

When we divide, our answer is:

Quartile 1 is 211. quartile 2 is 226 , and quartile 3 is 265.5