Graph the equation.y = -2 
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The intensity of a certain noise is 1.28 × 10-8 W/cm2. How loud, in decibels, is this sound level? Use the formula 
where 
(Round to the nearest decibel.)
A. 82 decibels B. 81 decibels C. -21 decibels D. 34 decibels
Evaluate the binomial coefficient.
A. 8
B. 1
C. 8!
D. 
Solve the inequality. Write the answer in set-builder notation.5(2x - 6) ? 30
A. 
B. {x
}
C. {x
}
D. 
Solve the problem.The population P of a predator mammal depends upon the number x of a smaller animal that is its primary food source. The population s of the smaller animal depends upon the amount a of a certain plant that is its primary food source. If 
and 
what is the relationship between the predator mammal and the plant food source?
A. P(s(a)) = 4a2 + 8a + 13 B. P(s(a)) = 12a2 + 12a + 21 C. P(s(a)) = 12a2 + 24a + 21 D. P(s(a)) = 6a + 11