Solve the problem.Suppose that the number of frequent flier miles (in billions) earned by customers of various airlines, but not yet redeemed in year x, could be approximated by the polynomial function: f(x) = 0.0017x4 - 0.68x3 + 11.33x2 - 20.15x 
where x = 0 corresponds 1980. How many unredeemed miles were there in 1983?
A. About 47 billion
B. About 23 billion
C. About 65 billion
D. About 29 billion
Answer: B
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Find the slope of the polar curve at the indicated point.r = -2 + 5 cos ?, ? = 
A. 
B. - 
C. 
D. - 
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 3 - e-0.69x; relative to f(x) = ex
A. Moved up 3 unit(s);
stretched horizontally;
reflected across the x-axis
B. Stretched horizontally;
reflected across the y-axis;
moved up 3 unit(s)
C. Stretched horizontally;
reflected across x-axis,
reflected across y-axis
Moved up 3 unit(s);
D. Stretched horizontally;
reflected across x-axis,
reflected across y-axis;
moved up 3 unit(s)
Find the sum.
A. - 
B. -24
C. 6
D. -75
Round the decimal to the given place value.25.6339, nearest thousandth
A. 25.6339 B. 25.644 C. 25.624 D. 25.634