Answer:
84 oz. water and 24 oz. powder
Explanation:
Okay so the ratio of water to powder is 7x:2x, x being however much you increase the number based off the question
The sum of water and powder is 108
so, 7x+2x=108
9x=108
x=12
that means water is 7*12=84 oz.
and powder is 2*12=24 oz.
to check: 84+24=108