Solve the logarithmic equation.ln x - ln (x - 7) = ln 9
A. 
B. 2
C. No solution
D. 
Answer: A
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Solve.A country reports total exports of $4,797 million last year. Write this number using standard notation.
A. $4,797 B. $4,797,000 C. $4,797,000,000 D. $4,797,000,000,000
Solve the compound inequality. Express the solution using interval notation or state that there is no solution.x - 3 ? 1 and x - 3 > -4
A. [-1, 4) B. (-7, -2] C. (-1, 4] D. [-7, -2)
Solve the system of equations algebraically for real values of x and y.
?
?
A. (3, 0), (6, 0) B. (0, 3), (9, 0) C. (0, 3), (0, 6) D. (9, 0), (6, 0) E. no solution
Find the vertex, focus, and directrix of the parabola with the given equation.y2 - 12y + 12x + 108 = 0
A. vertex: (6, 6) focus: (6, 9) directrix: y = 3 B. vertex: (-6, 6) focus: (-9, 6) directrix: x = -3 C. vertex: (6, 6) focus: (6, 3) directrix: y = 9 D. vertex: (-6, 6) focus: (-3, 6) directrix: x = -9