Solve the problem.The sales of a new model of notebook computer are approximated by: 
, where x represents the number of months the computer has been on the market and S represents sales in thousands of dollars. In how many months will the sales reach $2,000,000? Round to the nearest month.
A. 21 months
B. 25 months
C. 28 months
D. 18 months
Answer: D
Mathematics
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A. 11110101two B. 100010100two C. 101010000two D. 10101111two
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Solve.Kerry owed $140, borrowed an additional $110, and paid back $65. How much did she still owe?
A. $95 B. - $185 C. $185 D. $315
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Determine the equation of the line described. Put the answer in the slope-intercept form, if possible.Through (7, -4), perpendicular to y = - 
x - 
A. y = 
x - 
B. y = 
x - 25
C. y = 
x - 
D. y = - 
x + 
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Graph the linear inequality.-3x - 4y ? -12
A. 
B. 
C. 
D. 
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