Solve the problem.A radioactive substance has a decay rate of 1.9% per minute. Of an initial amount of 1000 g of the substance, how much will remain after 80 minutes?
A. 218.7 g
B. 196.8 g
C. 295.3 g
D. 245 g
Answer: A
Mathematics
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A. r = 
B. r = 
C. r = 
D. r = 
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Solve using the multiplication principle.-4.4m = -39.6
A. 35.2
B. 
C. 30.6
D. 9
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The table shows the number of votes received by each candidate in the last election. Candidate Votes Mr. Olsen 2078 Ms. Li 3760 Mr. Barone 2780 Ms. Vaporis 3706Write the number of votes received by Mr. Barone in expanded form.
A. 2000 + 700 + 80 B. 2000 + 70 + 8 C. 2000 + 700 + 8 D. 2700 + 80
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Solve the equation by first clearing the fractions.
y - (y + 
) = 
(y - 7)
A. 
B. 
C. 
D. 
Mathematics