Is x = 2, y = -1, z = 4 a solution of the system of equations shown below? Explain your answer.
What will be an ideal response?
x = 2, y = -1, z = 4 is a solution because these values satisfy every equation.
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Find the probability.Each of ten tickets is marked with a different number from 1 to 10 and put in a box. If you draw a ticket from the box, what is the probability that you will draw 5, 9, or 4?
A. 
B. 
C. 
D. 
Combine.(5x3 - 14x2 - 12) - (9x3 + 15x + 6)
A. -4x3 - 29x2 - 18 B. -4x3 - 14x2 - 15x - 18 C. -4x3 - 14x2 + 15x - 18 D. -4x3 - 14x2 - 15x - 6
Provide an appropriate response.You are asked to change 
to a mixed number. What should be your first step?
A. Multiply 25 and 24. B. Divide 24 by 25. C. Add 25 and 24. D. Divide 25 by 24.
Evaluate the expression for the given replacement values.x + y, for x = 43 and y = 21
A. 55 B. 73 C. 46 D. 64