Solve the problem.For what value of r does the infinite series 1 + 5r + 7r2 + 5r3 + r4 + 5r5 + 7r6 + 5r7 + r8 + . . . converge?
A. |r| < 
B. |r| < 6
C. |r| < 
D. |r| < 1
Answer: D
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Solve the problem.An organization helping to provide meals to city shelters for the homeless has a membership of 60 volunteers. They are assigned among the four city areas A, B, C, and D in proportion to the number of people fed in the respective areas. The numbers of people fed at the city shelters in each city area are shown in the following table. 
Use Webster's method to extend the table and apportion the 60 volunteers among the city areas. 
A. 
B. 
C. 
D. 
Find the solution set for the equation.|x - 1| = 2
A. {-3} B. {-1, 3} C. {1, 3} D. ?
Find the foci of the hyperbola.y = ±
A. 
and 
B. (
, 0) and (-
, 0)
C. 
and 
D. (0, 
) and (0, -
)
?Sketch the image of the unit square with vertices at (0, 0), (1, 0), (1, 1), and (0, 1) under the transformation T which is the contraction given by 
.
?
A. ?
B. ?
C. ?
D. ?
E. ?
