Solve.The difference between a country's exports and imports is called the country's trade balance. If one country had a trade balance of -$94 billion in 1991, $96 billion in 1983, and -$46 billion in 1997. What was the total trade balance for these years?
A. 44 billion dollars
B. -44 billion dollars
C. 236 billion dollars
D. -236 billion dollars
Answer: B
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Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.6 ln(x - 2) - 7 ln x
A. ln 42x(x - 2)
B. ln 
C. ln x7(x - 2)6
D. ln 
Multiply.
A. 0.12 B. 0.0012 C. 0.012 D. 1.2
Solve the problem.If n(A) = 15, n(A ? B) = 43, and n(A ? B) = 11, find n(B).
A. 40 B. 28 C. 39 D. 38
Solve the problem. Round money amounts to the nearest cent.Kristin switched from drinking 3 cups of drip coffee per day to drinking 5 cups of decaffeinated coffee per day. How many fewer grams of caffeine is she consuming each week? Assume that a cup of drip coffee contains 97 mg of caffeine and a cup of decaffeinated coffee contains 6 mg of caffeine.
A. 18.27 g B. 2.61 g C. 0.261 g D. 1.827 g