1/2 is the probability the coin would land heads up both times.
Here is how I completed the problem:
I started by creating a ratio:

<em>Where 'x' is the desired amount of the 18% solution of sulfuric acid.
</em>From here, I solved for 'x':
<em>
</em>







∴You will need to add 1080ml of 18% Sulfuric Acid in order to obtain a 15% solution.

because it's a linear function.
Answer:
you have to provide a picture or something as well
Step-by-step explanation:
Answer:
B 5
Step-by-step explanation:
Estimate 10.2 as 10
2.3 as 2
10/2 =5