Solve the problem.A chemist needs 11 liters of a 50% salt solution. All she has available is a 20% salt solution and a 70% salt solution. How much of each of the two solutions should she mix to obtain her desired solution?
A. 3.3 liters of the 20% solution; 7.7 liters of the 70% solution
B. 4.4 liters of the 20% solution; 6.6 liters of the 70% solution
C. 5.5 liters of the 20% solution; 5.5 liters of the 70% solution
D. 2.2 liters of the 20% solution; 8.8 liters of the 70% solution
Answer: B
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Find the indicated probability.The following table contains data from a study of two airlines which fly to Small Town, USA.
If one of the 87 flights is randomly selected, find the probability that the flight selected is an Upstate Airlines flight given that it was late.
A. 
B. 
C. 
D. None of the above is correct.
Simplify. Assume that no denominator is zero and 00 is not considered.(t - 3)9 (t - 3)2
A. (t - 3)11 B. (t - 3)18 C. (2t - 6t + 9)18 D. (2t - 6)11
Solve the equation graphically by finding x-intercepts.
= 12x + 4
A. x = 
B. x = - 
C. x = 
D. x = - 
Add or subtract as indicated.
+ 
A. 
B. 
C. 
D. 