Solve.Suppose economists use as a model of a country's economy the equation C = 0.7434D + 5.9029where C represents the consumption of products in billions of dollars and D represents disposable income in billions of dollars. Solve the equation for D and use the result to determine the disposable income D if the consumption C is $7.80 billion. Round your answer to the nearest tenth of a billion.
A. $4.6 billion
B. $2.4 billion
C. $2.6 billion
D. $11.7 billion
Answer: C
Mathematics
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Mathematics