Solve the problem.Suppose economists use as a model of a country's economy the equation C = 0.6716D + 5.9845where 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 $8.42 billion. Round your answer to the nearest tenth of a billion.
A. $3.6 billion
B. $3.5 billion
C. $11.6 billion
D. $6.6 billion
Answer: A
Mathematics
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Find the indicated matrix.Let A = 
. Find 3A.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Write all linear equations in slope-intercept form.With 23.5% commitment, a company can clean up 40% of an energy leak. With 28.5% commitment, it can clean up 80% of an energy leak. Find a linear equation that models the percent cleanup for x percent commitment.
A. y = 5x + 40 B. y = 8x + 148 C. y = 8x - 148 D. y = x + 40
Mathematics
Simplify.x + 8 + 5
A. 13x B. x + 14 C. 13 D. x + 13
Mathematics
Subtract. Write a mixed numeral for the answer.
A. 
B. 
C. 
D. 
Mathematics