Answer:
#1 is the answere
Step-by-step explanation:
Check the sides
Nearest tenth:
3.9
Nearest whole number:
4
When dealing with money, you must round up.
The answers 2
because you replace n with 7
Answer:
0.0001075
Step-by-step explanation:
The relation between halflife and rate at which it is decaying is given by

now in the above problem halflife is given as 2800 years substituting in the above equation we get the value of rate at which it is decaying to be rate=0.0001075.