Solve the problem.A chemist needs 140 milliliters of a 62% solution but has only 56% and 84% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 20 mL of 56%; 120 mL of 84%
B. 30 mL of 56%; 110 mL of 84%
C. 110 mL of 56%; 30 mL of 84%
D. 120 mL of 56%; 20 mL of 84%
Answer: C
Mathematics
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A. {9, -1} B. {9} C. {-9, 1} D. {1}
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Find an equivalent fraction with the given denominator.
= 
A. 
B. 
C. 
D. 
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In order to prepare her budget, Sue gathers receipts for all major expenses she has had over the last month. Round the figure to the nearest dollar.Car payment, $214.38
A. $214 B. $214.38 C. $214.40 D. $215
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