Solve the problem.The amount of a radioactive substance present, in grams, at time t in months is given by the formula 
Find the number of grams present in 2 years. If necessary, round to three decimal places.
A. 3103.691
B. 2.202
C. 0.220
D. 310.369
Answer: B
Mathematics
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Find the dot product for the pair of vectors.
, 
A. 27 B. 11 C. 25 D. 128
Mathematics
Solve the problem.Write 34 out of 100 gas stations as a reduced fraction and as a percent.
A. 
, 340%
B. 
, 34%
C. 
, 340%
D. 
, 3.4%
Mathematics
Convert the units.7 km = m
A. .7 m B. .07 m C. 700 m D. 7,000 m
Mathematics
Use an integer to express the number.In one state, the highest point is 2726 feet above sea level.
A. 2726 B. -2726
Mathematics