Solve the problem.Jennifer bought 21 quarts of milk for the day care center where she works. Her co-worker Henri, who is from France, says that the center will only need 13 liters of milk. How many extra quarts of milk did Jennifer buy?
A. 8 qt
B. 34.78 qt
C. 6.866 qt
D. 7.22 qt
Answer: D
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Write the statement in symbolic form.Let p: The outside humidity is high. q: The basement dehumidifier is running. r: The basement is getting moldy.If the basement dehumidifier is running, then the outside humidity is high if and only if the basement is getting moldy.
A. q ? (p ? r) B. (q ? p) ? r C. q ? (p ? r) D. p ? (q ? r)
Provide an appropriate response.Simplify: -4(2z + 1) - z - 24
A. -7z - 28 B. -7z + 20 C. -9z - 28 D. -9z + 28
Factor completely.375k3m - 192m4
A. 3m(5k - 4m)(25k2 + 20km + 16m2) B. 3m(125k - 4m)(k2 + 20km + 16m2) C. 3m(5k + 4m2)(25k2 - 20km + 16km2) D. (15km - 12m2)(25k2 + 16m2)
Solve the problem.The average height of a boy in the United States, from birth through 60 months, can be modeled by 
where y is the average height, in inches, of boys who are x months of age. What would be the expected difference in height between a child 49 months of age and a child 16 months of age?
A. 48.9 inches B. 20.3 inches C. 10.7 inches D. 8.7 inches