A researcher estimates that a fossil is 3200 years old. Using carbon-14 dating, a procedure used to determine the age of
an object, the researcher discovers that the fossil is 3600 years old.
a. Find the percent error.
b. What other estimate gives the same percent error?
Explain your reasoning.

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.