Answer:
y= -2
Step-by-step explanation:
Please see attached picture for full solution.
(From the 4th to 5th line, I multiplied both sides by 8)
Answer:
f=8
Step-by-step explanation:
fx0.5=4
f=4x2
f=8
120 grams half life at 45 days would be 60 then half life of 60 in another 45 days (90 total) should be 30 grams
I think the answer is z€0