Answer:
30 ounces
Step-by-step explanation:
First you have to make the proportion ounces to servings.
Then you put 12 for ounces and 8 for servings.
After you put an equal sign and after the equal sign you put for ounces an x and for servings 1.
Then you put 8x=12.
after you divide 8x by 8 to get x and 12 by 8 to get 1.5.
Lastly you do 1.5 times 20 to get 30.