Find the nth term {an} of the geometric sequence. When given, r is the common ratio.7, -14, 28, -56, 112, ...
A. an = 7 ? (-2)n-1
B. an = a1 - 2n
C. an = 7 ? (-2)n
D. an = 7 ? (-2)n
Answer: A
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Find the required inverse and locate on the number line.Find the multiplicative inverse for 4 and graph on the number line. 
A. 
B. 
C. 
D. 
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 
, y = 2t + 3; 0 ? t ? 4
A. y = -3x2 + 17; 0 ? x ? 2 B. y = 2x2 + 3; 0 ? x ? 2 C. y = -3x + 17; 0 ? x ? 2 D. y = 3x2 + 2; -1 ? x ? 2
Use the data to make a frequency distribution table.Kevin asked some of his friends how many hours they worked during the previous week at their after-school jobs.
Frequency Distribution Table 
What will be an ideal response?
Answer the question.According to the rules for order of operations, the first steps in evaluating the expression 
for 
are to substitute 2 for x and then .
A. find the cube of 2 B. subtract 43 from 4 C. multiply 4 by 2 D. subtract 4 from 43