Solve the system of equations by the substitution method.
A. (11, -1)
B. (-1, 11)
C. infinite number of solutions
D. no solution
Answer: B
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Determine whether the expression represents a number that is positive, negative, or zero.(-3)-3
A. Positive B. Zero C. Negative
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.5aw2 - 4b + bw2 - 20a
A. (w - 2)2(5a + b) B. Prime C. (5a + b)(w2 - 4) D. (5a + b)(w + 2)(w - 2)
Find the number of elements in the indicated set by referring to the given table.The table below shows the results of a poll taken in a U.S. city in which people are asked which candidate they intend to vote for in an upcoming presidential election. 
Find the number of people in the set B ? (R' ? A)
A. 988 B. 0 C. 440 D. 461
Rewrite without rational exponents, and simplify, if possible.(9y4)3/2
A. 27y6 B. 27y3/2 C. 2711 D. 9y12