Solve the problem.At age 50, Ann must choose between taking $21,000 at age 60 if she is alive then, or $30,000 at age 70 if she is alive then. The probability for a person aged 50 living to be 60 and 70 is .83 and 
, respectively. Using expected value, what is Ann's best option?
A. $21,000 at age 60
B. $30,000 at age 70
Answer: B
Mathematics
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Evaluate to four decimal places using a calculator.e-0.60
A. 0.6065 B. 0.5488 C. 1.8221 D. -1.6310
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Find the area of the specified region.Shared by the circles r = 2 and r = 4 cos ?
A. 
(2? + 3
)
B. 
?
C. 2?
D. 
(4? - 3
)
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Solve by the method of elimination by substitution.7x + 3y = -362x + 9y = 6
A. x = 6, y = 2 B. x = -12, y = 4 C. x = -6, y = 2 D. Inconsistent
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Find the perimeter of the figure.
A. 10x + 7 B. 5x + 7 C. 10x - 7 D. 10x + 14
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