Solve the problem.The weekly sales in thousands of items of a product has a seasonal sales record approximated by 
(t is time in weeks with 
referring to the first week in the year). During which week(s) will the sales equal 86,400 items?
A. week 4, week 20, and week 52
B. week 30 and week 47
C. week 21 and week 30
D. week 4 and week 47
Answer: A
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A. 844 B. 819 C. 444 D. 719
The following question refers to a country with five states. There are 250 seats in the legislature, and the populations of the states are given in the table below.
Under Webster's method, the apportionments to each state are
A. State A: 6; State B: 22; State C: 118; State D: 96; State E: 8. B. State A: 7; State B: 22; State C: 117; State D: 95; State E: 9. C. State A: 6; State B: 22; State C: 117; State D: 96; State E: 9. D. State A: 6; State B: 23; State C: 116; State D: 96; State E: 9. E. none of these
Use the regression capabilities of a graphing utility or a spreadsheet to find the least squares regression line for the given points.
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A. 
B. ?
C. ?
D. ?
E. ?
The given pattern continues. Write down the nth term of the sequence suggested by the pattern.2, 8, 14, 20, 26, ...
A. an = 2(3n - 2) B. an = 2(6)n-1 C. an = 4n - 6 D. an = 6n - 2