Solve the problem.How many liters of a 40% alcohol solution must be mixed with 30 liters of a 80% solution to get a 50% solution?
A. 12 L
B. 90 L
C. 120 L
D. 9 L
Answer: B
Mathematics
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Identify the distribution as symmetric, left-skewed, or right-skewed.Lengths of human pregnancies
A. Left-skewed B. Symmetric C. Right-skewed
Mathematics
Refer to the given map. Assume that the length of each east-west block is 
mile and the length of each north-south block is 
mile. 
Find the straight-line distance between the bus stop and the theater.
A. 1.50 mi B. 1.27 mi C. 1.33 mi D. 1.58 mi
Mathematics
Use the distributive property to rewrite the expression. Simplify if possible.9(3r + 6 + 2s)
A. 27r + 6 + 2s B. 27r + 54 + 2s C. 27r + 54 + 18s D. 27r + 6 + 18s
Mathematics
Graph the function.y = csc 
A. 
B. 
C. 
D. 
Mathematics