24.66 milligrams of medicine will remain in the system after 10 hours. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
Either A or C since the slopes are different.
Im p sure the degree is one
Scale factor = XY/UV = YZ/VW = XZ/WV
Scale factor = 21/3 = 28/4 = 14/2
Scale factor = 7