Question

Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 36. How old is each sister?

Answer 1

Please post this query in math section. Thank you! :)

Answer 2

Why is the coastal crossing theory of migration hard to prove or disprove?
There are many early human sites that provide clues about migration.
The coastlines that migrants would have sailed along are underwater.
Sea levels have lowered since the Ice Age.
The climate has remained the same since the Ice Age.

Answer 3

@jjules13 The Ice Age locked up major amounts of Earth's water into ice. When the ice melted, the seas would fill higher. So the shore lines that once existed would be under water after the ice melted.