Solve the problem.The number of mobile phones sold in a given year is approximated by 
where x represents the number of years since mobile phones became readily available. The corresponding polynomial for phones is 
Find the polynomial that represents how many more mobile phones than phones were sold in a given year.
A. -3x4 - x3 - 5x + 9
B. 3x4 - x3 + 11x2 - 6x + 8
C. -3x4 + x3 + 10x2 + 6x - 8
D. -3x4 + x3 + 3x2 - 12x + 10
Answer: B
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Provide an appropriate response.The circle of fifths is generated by starting at a particular musical note and stepping upward by intervals of a fifth. By what factor does the frequency of a tone increase if it is raised by three fifths?
A. 22.35 B. 1.22 C. 3.36 D. 6.05
For the given function, find all asymptotes of the type indicated (if there are any).f(x) = 
, vertical
A. x = 3, x = -3 B. None C. x = 8, x = -1 D. x = -8, x = 1
Change 65 days to weeks and days. ? __________ weeks and __________ days
What will be an ideal response?
Use the distributive property to write the expression without parentheses. Then simplify, if necessary.9(x + 7y + 4)
A. 9x + 63y + 36 B. 9x - 63y - 36 C. 9x + 7y + 4 D. 9x + 63y + 4