first there is ones then to the right there is a decimal you are going to be adding the "<em>ths" (</em>EX. hundredths, tenths, thousandths) so you are going to have 8 hundredths (.08)
Answer: This earring most defintly looks its and old type of design but i don't know the exact name I'm sorry I wish I could help more
Explanation:
1:a
2:e
3:c
4:b
5:d
Hope this helps<3