Solve the system. If the system's equations are dependent or if there is no solution, state this. x + y - 2z = 83x+ z = -62x - y + 3z = -14
A. (-1, -2, 2)
B. (1, 1, -2)
C. Equations are dependent.
D. No solution
Answer: C
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Solve the problem.If the first and third of three consecutive odd integers are added, the result is 51 less than five times the second integer. Find the third integer.
A. 15 B. 17 C. 19 D. 34
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Solve. The product of two whole numbers is given by the polynomial 2x2 + 7x - 39. Factor the polynomial. If the smaller number is 1, what is the larger number?
A. (2x - 13)(x + 3); 10 B. (2x - 13)(x - 3); 4 C. (2x + 13)(x - 3); 21 D. (2x + 13)(x + 3); 9
Find the rate, or speed, as a ratio of distance to time. Round to the nearest hundredth when necessary.390.40 m, 3.05 hr
A. 131.05 m/hr B. 131.05 hr/m C. 128 hr/m D. 128 m/hr