An Economist Predicts That the Buying Power B(x) of a Dollar

question 14

Multiple Choice

An economist predicts that the buying power B(x) of a dollar x years from now will decrease according to the form $B ( x ) = 0.61 ^ { x }$ . How much will today's dollar be worth in 7 years? Round the answer to the nearest cent.

• A) $3.28
• B) $4.27
• C) $0.71
• D) $0.03

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