Solve the following system of equations using the addition method. If both variables cancel out, state your solution as no solution or infinitely many solutions.x = -6(y - 1)-3x - 18y = -18
A. (6, 0)
B. no solution
C. (0, 1)
D. infinitely many solutions
Answer: D
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The size N, in thousands, of a certain animal population after t years is given in the table below. By what percentage can the population be expected to grow over any 6-year period? Round your answer to two decimal places. t 0 1 2 3 4 N 6.09 6.47 6.25 6.63 6.70?
A. 12.86% B. 12.00% C. 12.62% D. 13.41%
Use the Hill-Huntington method to find the apportionment.City A, City B, and City C are together undertaking a road construction project. The nine-member committee has representatives allocated to the committee in proportion to the population in each city. City A has a population of 15,000, City B has a population of 18,000, and City C has a population of 19,000. Apportion the committee seats using the 
method.
A. A: 3; B: 3; C: 3 B. A: 3; B: 2; C: 4 C. A: 2; B: 3; C: 4 D. A: 4; B: 3; C: 2
Solve the equation exactly in the complex number system.6x3 + 6x = 0
A. x = 0, x = ±1 B. x = ±i C. x = -6, x = ±i D. x = 0, x = ±i
Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.(9x16y-18)5/2
A. 243x40y45
B. 
C. 
D. 