Add or subtract. Express the answer as a mixed number.
A. 14
B. 11
C. 13
D. 13
Answer: C
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Use a calculator to evaluate the expression. (Round your answer to three decimal places.)
A. 9.2 × 10-4 B. 1.356 × 10 -3 C. 1.84 × 10-3 D. 1.356 × 100 E. 9.2 × 100?
Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will decrease according to the formula B(x) = 0.12x. How much will today's dollar be worth in 3 years? Round the answer to the nearest cent.
A. $0.36 B. $0.00 C. $0.53 D. $1.14
Find the slope of the line through the points.(-6, 6) and (-4, 6)
A. 0
B. undefined
C. 6
D. - 
Suppose that a triangle has legs a and b and hypotenuse c, as illustrated in the figure. Then these values satisfy 
Use the Pythagorean Theorem as described above to find the value of x in the figure.
A. -3 B. -5 C. 3 D. 5