Solve the inequality. Write the solution set using interval notation and graph it.x + 7 < 8 
A. (-?, 1)
B. (-?, 1]
C. (1, ?)
D. [1, ?)
Answer: A
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In the diagram below, the sum of the numbers in any 2 small circles is the number in the large circle between them. Complete the diagram so that the same pattern holds.
A. 
B. 
C. 
Simplify.
+ 
A. 
B. 
C. 
D. 
Find the difference. Simplify the result.
- 
A. 
B. 
C. 
D. 
Solve the problem.The diagram shows the roads connecting four cities.WX
YZThe matrix A below represents the number of routes between each pair of cities without passing through another city. 
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Calculate A3. What information is given by the entry in row 2, column 3 of A3?
A. There are 5 ways to travel between cities X and Y by passing through exactly three cities
B. There are 4 ways to travel between cities X and Y by passing through one city
C. There are 5 ways to travel between cities X and Y by passing through exactly two cities
D. There are 4 ways to travel between cities X and Y by passing through at most two cities