Solve.Five divided by the sum of a number and 9, minus the quotient of 3 and the difference of the number and 9 is equal to 6 times the reciprocal of the difference of the number squared and 81. What is the number?
A. 12
B. - 
C. 39
D. -33
Answer: C
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Find the missing quantities. If there is no operating loss or absolute loss, write "none."
A. Breakeven point = $51 Operating loss = $42 Absolute loss = $9 B. Breakeven point = $42 Operating loss = $9 Absolute loss = $51 C. Breakeven point = $42 Operating loss = none Absolute loss = none D. Breakeven point = $20 Operating loss = none Absolute loss = $9
Write the fraction in lowest terms.
A. 
B. 
C. 
D. 
Given f(x) and g(x), find the indicated composition and state its domain.f(x) = 3x + 15, g(x) = 2x - 1Find (g ? f)(x).
A. 6x + 29, all real numbers B. 6x + 18, all real numbers C. 6x + 12, all real numbers D. 6x + 14, all real numbers
Solve the problem.The velocity v of a meteorite approaching the earth is given by 
kilometers per second, where d is the meteorite's distance from the center of the earth and k is a constant. What is the velocity of a meteorite that is 2000 kilometers away from the center of the earth, if 
Give your answer as a simplified radical.
A. 
kilometers per second
B. 
kilometers per second
C. 
kilometers per second
D. 3000
kilometers per second