Solve the problem.The difference between a country's exports and imports is called the country's trade balance. If one country had a trade balance of -$87 billion one year, $116 billion the following year, and -$49 billion the third year, what was the total trade balance for these three years?
A. 20 billion dollars
B. -252 billion dollars
C. 252 billion dollars
D. -20 billion dollars
Answer: D
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Provide an appropriate response.Find the equation of a line passing through the point (3, 1) with slope 2. Solve for y.
A. y = 2x + 5 B. y = -2x + 7 C. y = -2x - 7 D. y = 2x - 5
Find the root. Assume that variables represent nonnegative values.
A. a18b12 B. a2b3 C. a12b18 D. a3b2
Identify the property illustrated by the statement.4(x + 5) = 4x + 4 ? 5
A. distributive property B. identity element for multiplication C. associative property of multiplication D. commutative property of addition
The graph of a certain function y = f(x) and the zero of that function is given. Using this graph, find a) the x-intercept of the graph of y = f(x) and b) the solution to the equation f(x) = 0.
A. a. 0 b. x = 0 B. a. 0 b. x = 12 C. a. 12 b. x = 0 D. a. 12 b. x = 12