Solve the problem.A chemist needs 50 milliliters of a 61% solution but has only 53% and 73% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 20 mL of 53%; 30 mL of 73%
B. 30 mL of 53%; 20 mL of 73%
C. 40 mL of 53%; 10 mL of 73%
D. 10 mL of 53%; 40 mL of 73%
Answer: B
Mathematics
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List the intercepts of the graph. 
A. (-9, 0), (0, -9), (0, 0), (0, 9), (9, 0) B. (-9, 0), (0, -9), (0, 9), (9, 0) C. (-9, 0), (0, 9) D. (0, 9), (9, 0)
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Convert to rectangular coordinates.
A. (-6
, 6
)
B. (6
, -6
)
C. (6
, 6
)
D. (-6
, -6
)
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Find the product, if possible. 
A. 
B. 
C. 
D. 
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