Decide whether the pair of lines is parallel, perpendicular, or neither.3x - 2y = 142x + 3y = -4
A. parallel
B. perpendicular
C. neither
Answer: B
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Find the area of the shaded region.
A. 36 B. 27 C. 45 D. 18
Solve the problem.The population of a particular country was 25 million in 1982; in 1989, it was 37 million. The exponential growth function 
describes the population of this country t years after 1982. Use the fact that 7 years after 1982 the population increased by 12 million to find k to three decimal places.
A. 0.056 B. 0.976 C. 0.355 D. 0.066
Evaluate -x for the given value of x.x = 2.936
A. 2.936 B. -2.936 C. -3 D. -2
Solve the problem.The radius, r, of a sphere can be found using the formula 
where S is the surface area. If the surface area is 7918 square inches, what is the radius? (Use 3.14 for ?, and round your answer to the nearest tenth of an inch.)
A. 50.2 in. B. 78.8 in. C. 44.5 in. D. 25.1 in.