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
Answer:
70% = 7/10
Step-by-step explanation:
The fraction is given in the problem statement as 70%. It can be expressed as 7/10, 0.7, 0.70, and many other ways. Take your pick.
Probably miles, canyons are HUGE, it's only logical to use miles
Answer:
The first choice.
Step-by-step explanation:
hope this helps!
