Solve the problem.In Country X, estimates of future welfare expenditures in billions of dollars can be modeled by 
where 
Estimate the years when welfare expenditures will range from 83 to 143 billion dollars.
A. After 2027
B. Between 2027 and 2029
C. Between 2017 and 2020
D. Between 2019 and 2020
Answer: B
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Decide whether the rational number yields a repeating or a terminating decimal.
A. Repeating B. Terminating
State whether you think the difference between what occurred and what you would expect by chance is statistically significant.In eighteen of the last twenty years the annual precipitation in a certain region has been less than in the previous year.
A. Statistically significant B. Not statistically significant
Approximate the coordinates of each turning point by graphing f(x) in the standard viewing rectangle. Round to the nearest hundredth, if necessary.f(x) = 0.1x4 - 0.55x3 + 0.3x2 - 0.15x - 2
A. (0, -2) and (3.75, -7.57) B. (-1.26, 0), (3.75, -7.57), and (5.12, 0) C. (3.75, -7.57) D. (-1.26, 0) and (5.12, 0)
Write out the first five terms of the sequence.an = 
A. - 
, - 
, - 
, - 
, - 
B. 
, - 
, 
, - 
, 
C. 
, - 
, - 
, - 
, - 
D. 
, 
, 
, 
, 