Sedimentary rocks record past geological events and .

Earth’s circumference and diameter in the past

written history

astronomical milestones of the past

changing life forms of the past

hi there!

the answer you are looking for is relatively steep.

have a nice day!

the answer would be the third option, "no, ariel should have added 9^2 and 12^2 and compared that to 15^2."

this is found through the pythagorean theorem, which is a^2 + b^2 = c^2.

this is the correct way of solving the problem:

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225

answer: im pretty sure its dropping and regressing

explanation: