Answer:
i dont understand what you want us to do lol?
Step-by-step explanation:
I need a picture so i can help you out.
In total there will be 688 milliliters of compound used 258 from compound B and 430 milliliters of compound A so 688 in total.
Explanation:
Since we have given that

Now, we have to prove it as

Now, start the iterations:

So, first blank will be filled with

Second blank will be filled with

Hence proved.