1 cubic foot = 7.48 gallons
1 gallon = 8.33 lbs
1 cubic foot (in lbs weight) = 7.48 gallons * 8.33 lbs = 62.3084 lbs = 62.3 lbs
1 lb = 16 oz
1 cubic foot water = 62.3084 lbs * 16 oz = 996.9344 is = 996.9 oz = 997 oz
Mary added
cups of sugar.
<h3>
How to estimate how much sugar should Mary add?</h3>
The ratio of flour to sugar exists at 9 cups: 2 4/7 cups
Utilizing equivalent ratios, given that 7 cups of sugar was utilized,
Let cups of flour needed = x such that our equation becomes
flour/sugar
Convert mixed numbers into improper fractions

simplifying the above equation, we get

= 
x = 24.5
The value of x = 24.5.
Therefore,
cups of sugar exist required.
To learn more about improper fractions refer to:
brainly.com/question/387381
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Answer:
Solution x=16
Step-by-step explanation: