Solve the problem.The median weekly incomes of full-time female workers for various age groups are listed in the table below. 
Let W(a) represent the median weekly income (in dollars) of women at age a years. Here is the quadratic regression equation for W: W(a) = -0.30a2 + 27.61a - 97.01Use this model to estimate the median weekly income of women at age 20.
A. $335
B. $320
C. $328
D. $315
Answer: A
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Complete the ordered pairs so that each is a solution of the linear equation. Then plot each solution and graph the equation by connecting the points by a straight line.y = x - 4(6,
)(-5,
)(0,
)
A. (6, -2)
(-5, 9)
(0, 4)
B. (6, 2)
(-5, -9)
(0, -4)
C. (6, 10)
(-5, -1)
(0, 4)
D. (6, -10)
(-5, 1)
(0, -4)
Determine whether the positive or negative sign makes the equation correct. Do not use a calculator.tan 
= ±
A. Positive B. Negative
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.18z2 - 63z - 36
A. (18z - 9)(z + 4) B. 9(2z - 1)(z + 4) C. 9(2z + 1)(z - 4) D. Prime
Write the first five terms of the sequence whose nth term is shown.an = n - 4
A. -4, -3, -2, -1, 0 B. -1, 0, 1, 2, 3 C. -3, -2, -1, 0, 1 D. -16, -12, -8, -4, 0