Solve the problem.In a chemical reaction, the rate at which the amount of a reactant changes with time is proportional to the amount present, such that 
, when t is measured in hours. If there are 
of reactant present when t = 0, how many grams will be left after 
? Give your answer to the nearest tenth of a gram.
A. 4.1 g
B. 6.1 g
C. 0.1 g
D. 2 g
Answer: A
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Use the table to find the probability.The table shows the number of college students who prefer a given pizza topping.
Determine the probability a student prefers veggie toppings given that student is junior or senior. Round to the nearest thousandth.
A. 0.365 B. 0.375 C. 0.585 D. 0.194
In the following question(s), FN represents the Nth Fibonacci number.F29 is what percentage of F30?
A. 19% B. 261.8% C. 1.05% D. 161.8% E. 61.8%
Provide an appropriate response.
The intensity of an earthquake is measured on the Richter scale by the formula Richter scale rating = log 
, where I0 is the measure of the intensity of a very small earthquake. Use this formula to find the Richter scale rating of an earthquake having intensity 10,000,000I0.
A. 15 B. 6 C. 7 D. 16
Graph the circle.x2 + y2 + 2x + 2y - 23 = 0
A. 
B. 
C. 
D. 