A] if .8=1 liter water, then .2=(1/4)(1)=.25 milk-->1.25liters in total
B] .25 liters
Theres about 800 different combinations, i'm not sure though, i'm sorry if i'm wrong
The answer to this is -76
PEDMAS
The rule is Paranthesis First
|7-(24÷|3-6|)|
|7-(24÷|-3|)|
Now we have to get the -3 outside the 2 Lines but the lines are saying that if the number inside is negative when you get it outside it has to be positive.
|7-(24÷3)|-
|7-(8)|
|7-8|
|-1|
= 1