The rate at which caffeine is eliminated from the blood stream is about 15% per hour. jim drinks a caffeine soda, and the caffeine in his bloodstream peaks at 30 milligrams. write an equation that will model this. A. y=30•0.15^x
B. y=30•1.15^x
C. y=30•0.85^x
D. y=30•15^x

Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p. s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)