Write the first four terms of the sequence whose general term is given.an = 
A. 8, 6, 
, 
B. 8, 6, 
, 5
C. 5, 6, 7, 8
D. 8, 12, 16, 20
Answer: D
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Solve the problem.A television offer advertised a set of knives for $20 down and $8 a month for 12 months. What is the total cost of the knives?
A. $96 B. $126 C. $116 D. $106
Divide and simplify. Assume variables do not cause any denominators to equal 0.
÷ 2
A. 8
B. 
C. 
D. 
Solve the problem.In an analysis of traffic, a certain city estimates the traffic flow as illustrated in the figure below, where the arrows indicate the flow of traffic. If x1 represents the number of cars traveling from intersection A to intersection B, x2 represents the number of cars traveling from intersection B to intersection C, and so on, we can formulate equations based on the principle that the number of vehicles entering the intersection equals the number leaving it. Formulate an equation for the traffic at each of the four intersections. 
A. x1 - x4 = 450 x1 - x2 = 650 x2 - x3 = 1400 x3 - x4 = -1100 B. x1 - x4 = -450 x1 - x2 = -650 x2 - x3 = -1400 x3 - x4 = 1100 C. x1 - x4 = -650 x1 - x2 = -450 x2 - x3 = 1400 x3 - x4 = -1100 D. x1 - x4 = 450 x1 - x2 = 650 x2 - x3 = 1400 x3 - x4 = 1100
Write the expression without using absolute value symbols.
?
?
?
A. x + 8 B. -8x C. x - 8 D. 8x E. 8 - x