Solve the system by substitution.x + y = -2x - y = -8
A. {(5, 4)}
B. {(-5, 3)}
C. ?
D. {(-6, 4)}
Answer: B
Mathematics
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Use the graph to estimate the specified limit.Find 
f(x)
A. - 
B. 
C. 
D. -3
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The _________ property of multiplication states that changing the order when multiplying does not affect the answer.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Convert to radical notation and simplify.a4/3x8/3
A. ax2
B. ax
C. ax2
D. ax2
Mathematics
Convert. When necessary, round the answer to two decimal places.9 tons = ____ pounds
A. 9000 B. 18,000 C. 144 D. 1800
Mathematics