The concentration C, in milligrams per deciliter, of a certain drug in the bloodstream t hours after injection is given in the following table.
t0123 C36.0030.2425.4021.34?
A: Make a table of successive ratios to show that the concentration of the drug can be modeled by an exponential function. Round your answer to two decimal places.B: Find an exponential model for the data. Round your answer to two decimal places.C: Plot the graph of the data points along with the exponential model. Include up to 10 hours.D: According to the model, how long will it take for the drug concentration to decay to 14.00% of the initial amount? Round your answer to two decimal places.
What will be an ideal response?
?
| Time increment | From  to  | From  to  | From  to  |
| Ratios of C |  |  |  |
?
B: 
C:
D: 11.28 hours
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