Solve.2k2 + 25 = -15k
A. -5, -10
B. - 
, -5
C. 5, 
D. 5, - 
Answer: B
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Solve the equation.4(3x - 1) = 16
A. 
B. 
C. 
D. 
A balloon is initially full of air, but then it springs a leak. It leaks at a constant rate of 6 cubic inches per minute. After a while the leak is patched, a pump is attached, and the balloon is re-inflated to its original volume. The pumping rate is constant at 7 cubic inches per minute. Let B denote the volume, in cubic inches, of air in the balloon after t minutes.
?
A: Explain in practical terms the meaning of 
.
B: During the time the balloon is leaking air, what is the value of ?
C: During the time air is being pumped into the balloon, what is the value of ?
What will be an ideal response?
Solve the absolute value inequality. Write your answer in interval notation.
? 1
A. (4, 12) B. (-?, -12] ? [4, ?) C. [4, 12] D. (-?, 4] ? [12, ?)
Solve the formula for the specified letter.
+ 
= c for b
A. b = ac - 
B. b = 
C. b = 
D. b = 
- a