It would 20.5, but rounded off would be 21
Answer:
7.015991031771544 or 7.0 ounces
mili-
Step-by-step explanation:
First you had to add by twenty-two from both sides of equation form.

Then simplify by equation.

Next, you divide by four from both sides of equation form.

Finally, simplify by equation.





Final answer: 
Hope this helps!
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-Charlie
Answer:
because they all have 3 corners
7/8 of that drink is water because 50 ml is 1/8 of 400 so the other 7/8 is water