Solve the problem. Express your answer in scientific notation, and round to one decimal place. In a state with a population of 7,000,000 people, the average citizen spends $6,000 on housing each year. What is the total spent on housing for the state?
A. $42 × 1010
B. $4.2 × 1010
C. $42 × 1011
D. $4.2 × 109
Answer: B
Mathematics
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A. - 
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then if 
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Select the correct answer. a. 6.9 b. 8.9 c. 9.9 d. 7.9 e. 5.9
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