Solve the problem.An element decays at the rate of S(t) = se-0.086t, where t is time in years and s is the initial size in grams. If you have a 63-gram piece of this element, how many grams will you have 2 years from now? Round your answer to the nearest tenth of a gram.
A. 74.8 g
B. 53.0 g
C. 28.9 g
D. 0.8 g
Answer: B
Mathematics
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A. 900 B. 550 C. 500 D. 850
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Write as a percent.0.928
A. 0.0928% B. 928% C. 0.928% D. 92.8%
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Solve the problem.Yearly sales at a certain department store follow the model 
where y is the total sales in thousands of dollars and x is the number of years after 1992. In what year will the sales first be less than 
A. 1994 B. 1991 C. 1990 D. 1995
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Write < or > between the pair of numbers to make the statement true.-7 ? 0
A. < B. >
Mathematics