United Kingdom governing power Executive?

What is the missing step in this proof? scroll down to see the entire proof.u

Anna’s mother prepares sauerkraut, a fermented dish made from finely cut cabbage and salt. lactobacillus bacteria present on the surface of the cabbage combine with salt to turn the cabbage into a crunchy, sour dish. what chemical process occurs to create this dish? a. alcoholic fermentation b. cellular respiration c. conservation d. lactic acid fermentation e. photosynthesis

How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?