Solve the system by elimination.-7x + 6y = -49-2x + 4y = -14
A. {(7, 0)}
B. {(6, 1)}
C. {(x, y)|-2x + 4y = -14}
D. ?
Answer: A
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Fill in the blank with the appropriate symbol, ? or ? .6.3 
{x|x is a rational number smaller than 6}
A. ? B. ?
Write in exponential form.log39 = 2
A. 39 = 2 B. 92 = 3 C. 32 = 9 D. 23 = 9
Solve the problem.An organization helping to provide meals to city shelters for the homeless has a membership of 60 volunteers. They are assigned among the four city areas A, B, C, and D in proportion to the number of people fed in the respective areas. The numbers of people fed at the city shelters in each city area are shown in the following table. 
Use Jefferson's method to extend the table and apportion the 60 volunteers among the city areas. 
A. 
B. 
C. 
D. 
Solve the problem.Find the number of games played in a round robin tournament for the given numbers of teams. In a round robin tournament every team plays every other team once.
Use inductive reasoning to find a formula for the number of games played in a round robin tournament involving n teams.
A. 6 teams: 16 games 7 teams: 20 games n teams : 4(n - 2) games B. 6 teams: 21 games 7 teams: 28 games n teams : n(n + 1)/2 games C. 6 teams: 15 games 7 teams: 21 games n teams : n(n - 1)/2 games D. 6 teams: 14 games 7 teams: 18 games n teams : 4n - 10 games