An old campfire is uncovered during an archaeologicaldig. Its charcoal (14C) is found to contain less than 1/1000 thenormal amount ofcarbon-14 (14C). If the half-life of 14Cis 5700 years, estimate the minimum age of this campfire.

Where’s the graph too show me?

7for nonmembers i think

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.