Solve the system of equations by Gaussian elimination.
A. {(4, 1)}
B. {(5, 1)}
C. {(5, 0)}
D. ?
Answer: C
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Use the problem-solving strategy for applications of linear equations to solve the application problem.A health food store sells a trail mix for $8 per pound and premium cashews for $15 per pound. The manager wishes to make a 350-pound 
mixture that will sell for $9 per pound. How many pounds of each should be used?
A. 175 lb of trail mix 175 lb of cashews B. 200 lb of trail mix 150 lb of cashews C. 50 lb of trail mix 300 lb of cashews D. 300 lb of trail mix 50 lb of cashews
Choose the first set in the list natural numbers, whole numbers, integers, rational numbers, and real numbers that describes the following number.-3?
A. Real numbers B. Whole numbers C. Integers D. Rational numbers
Write as a fraction or as a mixed number14
%
A. 
B. 
C. 1
D. 
Find the value of the polynomial.-6x2 + 9x - 2 when x = -2
A. -8 B. -54 C. -44 D. -48