Answer:
4.54 billion years
Step-by-step explanation:
Scientists use the layers of rock of the Earth's crust/core to estimate how old is the earth.
4.543 billion years i think, i apologize if im wrong
Change 10 (Last number at the end in the Flour (Cups) row) to 20. You need 20 cups of flour.
C = 86 degrees
x = 10
100
