Step-by-step explanation:
4/9 is in lowest terms because it does not have any other common factor , other than 1 so it can't be reduced more .
A. True
Answer:
12,667,203 miles
Step-by-step explanation:
Answer:

Step-by-step explanation:
The half life is the amount of time it takes a substance to decay to half of its original amount.
Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.
So, the fraction that will be left after 1000 years is 
let the number of sides be n.
Thus,
(n-2)x180=330
n-2=1.83
n=3.83
Rounding off we have, n=4.
Thus the total number of side is 4.