Solve by the substitution method.-7x + 99 = 6y3x - 2y = 15
A. {(8, 7)}
B. {(9, 6)}
C. {(x, y)|3x - 2y = 15}
D. ?
Answer: B
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Shade the Venn diagram to represent the set.A' ? B'
A. 
B. 
Find a formula for the nth term of the sequence.0, 2, 0, 2, 0 (alternating 0's and 2's)
A. an = 1 - (-1)n B. an = 1 + (-1)n C. an = 1 + (-1)n+1 D. an = 1 + (-1)n-1
Write a general term an for the sequence. Assume that n begins with 1.
, 
, 
, 
, . . .
A. an = 
n-1
B. an = 
n
C. an = 
n
D. an = 
(n - 1)
Provide an appropriate response.Fill in the blank with "always greater than," "sometimes greater than," "always less than," or "cannot be determined," whichever response is correct. When dividing a positive fraction by 
, the answer is 
the fraction.
A. always greater than B. always less than C. sometimes greater than D. cannot be determined