The scale factor would be 3
1 7/24 is the correct answer I will show you how to get it if needed.
The answer is C because the x axis is 2 and the y axis is -2 so the answer is (2,-2).
Answer:
We must add 400 ml of water.
Step-by-step explanation:
We can use the following equation:

Where:
- C(i) is the initial concentration of the solution (80%)
- C(f) is the final concentration of the solution (30%)
- V(i) is the initial volume (150 ml)
- V(f) is the final volume
Now, we just need to solve the equation for V(f).



Therefore, we must add 400 ml of water.
I hope it helps you!