Simplify by using the distributive law and combining like terms.7x - (2x - 6) - (-7x + 1)
A. 16x + 5
B. 12x + 7
C. 12x - 7
D. 12x + 5
Answer: D
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Solve the problem.Find the extreme values of 
subject to 
and 
A. Maximum: 2
at 
minimum: - 2
at 
B. Maximum: 4
at 
minimum: - 4
at 
C. Maximum: 3
at 
minimum: - 3
at 
D. Maximum: 
at 
minimum: - 
at 
Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.8x2 = -15x
A. x = ± 
B. x = - 
, x = 0
C. x = 0
D. x = 
, x = 0
Factor the GCF from the polynomial.x(y + 2) + 4(y +2)
A. (xy + 2x) + (4y + 8) B. 4x(y +2) C. 2y(x + 4) D. (y +2)(x + 4)
Solve the problem.A cellular phone company determines a monthly bill from the x number of minutes of usage. The amount of the bill, B(x), (in dollars) is given by the function: 
Determine the bill of a customer who uses her cellular phone 32.00 minutes during the month.
A. $32.00 B. $961.92 C. $3.52 D. $33.47