Math(Quick question)
posted by Hannah .
The function D(h)=7e^0.4(h) can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams will be present after 9 hours. Round three decimal places.
so 7e^(0.4 x 9) = .191
To get this answer I used a TI83 calculator. My question is how do I enter this in a TI30 calculator.? In my math class we are not allowed to use the TI83.

The function D(h) =7e^0.4h can be used to determine the milligram 12 hours?