Simplify.
A. 6
B. 19
C. 11
D. 66
Answer: A
Mathematics
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Solve the problem.At age 50, Ann must choose between taking $18,000 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 0.81 and 0.61, respectively. Using expected value, what is Ann's best option?
A. $30,000 at age 70 B. $18,000 at age 60
Mathematics
Find the indicated rate.Tim's car will go 242 miles on 11 gallons of gasoline in city driving. What is the rate in miles per gallon?
A. 
mpg
B. 21.5 mpg
C. 22 mpg
D. 22.5 mpg
Mathematics
Simplify.
A. 
B. 6 - a2
C. 6
D. 
Mathematics
Find the x- and y- intercepts.4x - 2y = 5
A. x-int: 
; y-int: - 
B. x-int: 1; y-int: 7
C. x-int: 
; y-int: 
D. x-int: - 
; y-int: 
Mathematics