Solve the system by the elimination method.x + y = -7x + y = 4
A. ?
B. {(0, -3)}
C. {(0, 0)}
D. {(-7, 4)}
Answer: A
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Multiply and write the product in exponent form.116 ? 59
A. 116 ? 59 B. 5515 C. 1115 D. 5554
Solve the problem.The table shows the population of a city over the past five years.
We used these data to develop the quadratic equation 
, which models the population of the city y in millions in the year x, where x = 0 represents 1995, x = 1 represents 1996, and so on. Use the model to find the estimated population in the year 1998.
A. 1,490,000,000,000 B. 1,490,000 C. 68,852,000 D. 71,628,000
Name the property illustrated by the statement.2 + 5 = 5 + 2
A. associative property of addition B. distributive property C. commutative property of addition D. identity element for addition
Find the domain of the composite function f ? g.f(x) = x + 4; g(x) = 
A. {x 
B. {x 
C. {x 
D. {x 