Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary. 7x - 5y = -21-4x + 3y = 12
A. {(-4, 1)}
B. {(-3, 1)}
C. ?
D. {(-3, 0)}
Answer: D
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Solve the problem.A retail store buys 35 VCRs from a distributor at a cost of $150 each plus an overhead charge of $30 per order. The retail markup is 30% on the total price paid. Find the profit on the sale of one VCR.
A. $45.00 B. $44.74 C. $45.26 D. $4,526.00
Determine between which two consecutive whole numbers each square root lies.
A. 13 and 14 B. 14 and 15 C. 15 and 16 D. 10 and 11
Simplify. Do not use negative exponents in your answer.(x-8y10z3)(x-2y-2z5)
A. x6y8z8
B. 
C. 
D. 
Choose the right premise for the given statement and conclusion.
Red Herring Fallacy Employee: I would like to request a salary increase. Director: There is no vacant position to promote you. Conclusion: The director cannot increase the salary. a. Premise: There is no vacant position for promotion. b. Premise: The director cannot promote you. c. Premise: There is no position with a higher salary. d. Premise: The director cannot increase your salary.