Find the common difference for the arithmetic sequence.6, 7, 8, 9, . . .
A. 1
B. 3
C. 6
D. 0.75
Answer: A
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Solve the problem.Jimmy is a partner in an Internet-based coffee supplier.The company offers gourmet coffee beans for $11 per pound and regular coffee beans for $3 per pound. Jimmy is creating a 
product that will sell for $5 per pound.The first thing to go into the mixing bin was 14 pounds of the gourmet beans. How many pounds of the less expensive regular beans should be added?
A. 43 lb B. 41 lb C. 42 lb D. 44 lb
Provide an appropriate response.If one form of the correct answer of a difference of two rational expressions is 
, what would be an alternate form of the answer if the denominator is 5 - k?
A. 
B. 
C. 
D. 
Look for a pattern and then predict the general term, or nth term, an, of the sequence.
, 
, 
, 
, 
, . . .
A. an = 
n-1
B. an = 
C. an = 
D. an = 
Express the interval in set-builder notation and graph the interval on a number line.(-?, 2.5]
A. {
x > 2.5}
B. {
x ? 2.5}
C. {
x < 2.5}
D. {
x ? 2.5}