Solve.The radiator in a certain make of car needs to contain 
of 40% antifreeze. The radiator now contains 
of 20% antifreeze. How many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength?
A. 23.3 liters
B. 17.5 liters
C. 35 liters
D. 28 liters
Answer: B
Mathematics
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? 0
A. (-6, 6)
B. 
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