Solve the problem.What is the intensity in watt/m2 of a noise that's loudness is measured at 86 decibels?
A. 5.43 × 1015 watt/m2
B. 3.98 × 10-4 watt/m2
C. 3.98 × 10-3 watt/m2
D. 8.6 × 10-10 watt/m2
Answer: B
Mathematics
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Find percent notation for the fraction notation in the sentence.Bob's rent is 
of his income. What percent of his income goes to pay the rent?
A. 40% B. 55% C. 50% D. 45%
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Simplify.-(-7)
A. -7 B. -8 C. 0 D. 7
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Use the horizontal line test to determine if the function is one-to-one.
A. No B. Yes
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Solve the problem.Find the exact interest on a loan of $62,000 at 11% annually for 131 days.
A. $2481.72 B. $2447.73 C. $2503.78 D. $2538.56
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