Evaluate the expression, given x = -2, y = 3, and a = -4.
A. 
B. 0
C. - 
D. Undefined
Answer: D
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Find the area of the rectangle.
A = 
in.B = 11 in.
A. 2 in.2
B. 
in.2
C. 
in.2
D. 
in.2
Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.-3, 3, 9, 15, 21, . . .
A. an = 6n - 9; a20 = 111 B. an = 9n - 6; a20 = 174 C. an = 6n - 3; a20 = 117 D. an = 9n - 3; a20 = 177
Determine whether the equation is an identity, contradiction, or conditional equation.-12x = 3x - 15x
A. Contradiction B. Conditional C. Identity
Solve the problem.A box is to be designed with a length that is four times the width, and its height is to be 4 feet more than the length. Let w represent the width. Write an expression for the volume of the box in terms of w.
A. 16w3 + 16w2 B. 9w + 4 C. 16w2 + 16w D. 4w3 + 16w2