Use the substitution method to solve the system of linear equations. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this. x + y = 63x + 3y = 18
A. (9, -3)
B. {(x, y) 
}
C. (0, 0)
D. No solution
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Find the sum of the infinite geometric series, if it exists.-30 - 5 - 
- 
- . . .
A. 6
B. - 36
C. - 
D. Does not exist
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Divide. Write the answer in lowest terms and as a whole or mixed number where possible.
÷ 
A. 
B. 
C. 10
D. 3
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Solve the logarithmic equation.log2 (x + 5) + log2 (x - 5) = 2
A. 2
B. 26
C. 
D. 29
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