Use the pictograph to answer the question.This pictograph shows projected sales of compact disks (CDs) for a popular rock band for seven consecutive years. 
? = 100,000 CDsIn which year will the greatest number of CDs be sold?
A. 2003
B. 2006
C. 2004
D. 2001
Answer: A
Mathematics
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Find the vertex for the parabola whose equation is given.y = x2 + 14x + 3
A. (-7, -46) B. (14, 395) C. (7, 150) D. (-7, -144)
Mathematics
Solve. Give your answer as a mixed number if appropriate. 
= 
A. 56
B. 56
C. 56
D. 56
Mathematics
Solve the system of equations using matrices. Use Gaussian elimination with back-substitution.3x + 5y - 2w=-132x + 7z - w=-14y + 3z + 3w=1-x + 2y + 4z=-5
A. {(
, -2, 0, 
)}
B. {(-1, - 
, 0, 
)}
C. {(
, - 
, 0, 
)}
D. {(1, -2, 0, 3)}
Mathematics
8. Find the amount of an annuity that consists of 30 annual payments of $500 each into an account that pays 7% interest per year.
(a) $7,230.09 (b) $17,230.49 (d) $15,000 (e) $37,430.59
Mathematics