<span>Carbon 14 half-life = 5,730 years
11,460 years / 5,730 = exactly 2 half-lives.
So, after 11,460 years there is 1/4 of the original 8 grams.
Therefore, 2 grams will remain.
</span>
The rules are ...


Your expression makes use of both these rules.

Your single logarithm is ...
Answer:
2 + 2 = 4
OR
2 + 2 = 22
Step-by-step explanation:
Heh
Well, since the actual size is 900 times as large as the size in blueprint, this would probably be division. If I'm right, you would first do 900 divide by 4 would equal to 225. so the actual size of the dining room is 225.
I hope this helps...