Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will be given by the formula B(x) = 0.39x. How much will today's dollar be worth in 4 years? Round to the nearest cent.
A. $1.72
B. $1.56
C. $0.69
D. $0.02
Answer: D
Mathematics
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A. 5?
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C. 
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D. 
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A. y = x2 + 2, x ? 1 B. y = x2 - 2, x ? 1 C. y = x - 2, x ? 1 D. y = x + 2, x ? 1
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Use reference angles to find the exact value of the expression. Do not use a calculator.tan 
A. - 
B. 
C. 
D. 
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Determine whether the statement is true or false.The number 
is not an integer.
A. False B. True
Mathematics