Half life of a drug in the bloodstream is nine hours what fraction of the original does remains in 12 hours and in 36 hours

dont trust me im no expert these losers made me fail a test bro this sucks

step-by-step explanation:

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6

i only know the sequence of arithmetic it adds the first is 5+4 then it goes up as it adds to then it is 9+5 then 14+6 then to 20+7 and so on. 5,9,14,20,27,35.

step-by-step explanation:

they charge the same amount at 20 minutes.

step-by-step explanation: