Solve the problem.The bacteria in a 9-liter container double every 2 minutes. After 57 minutes the container is full. How long did it take to fill a quarter of the container?
A. 53 min
B. 28.5 min
C. 14.3 min
D. 42.8 min
Answer: A
Mathematics
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Graph the region described by the inequality.x - y > -3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A certain radioactive isotope decays at a rate of 0.275% annually. Determine the half-life of this isotope, to the nearest year.
A. 182 years B. 109 years C. 3 years D. 252 years
Mathematics
Solve.For the production of a special product, a substance must be heated to 520°F. Convert this temperature to degrees Celsius, rounding to nearest tenth.
A. 285.3°C B. 942.4°C C. 271.1°C D. 968°C
Mathematics
Use the graph to find the value. 
(3)
A. 7
B. - 
C. - 7
D. 
Mathematics