Answer:
It’s 8 8/15 or 128/5
<span>Which numbers are divisible by nine?
107 513 944 126 802
answer is 513
because 513/9 = 57</span>
Tripiling time is

t=time elapsed
r=tripling time
P=initial amount
so

when time is measured in minutes
if measured in hours then

or
Answer:
I think the answer is 0.3 in 0.4