Answer:
Follows are the answer to this question:
Explanation:
pleas find the attachment file.
Formula for ΔE:

to calculate the value for ΔE put the value in above formula:
Because C-12 is fixed value of any organisms but the value of C-14 is constantly decreasing by time thats why every organism have their specific ratio of C14/C12
Answer:
235 miles equals 5,280 feet
Explanation: