Help please! Lots of points! Will mark Brainliest!

On the first one I think its A, and on the second one I think its also A

{ I hope i helped and i'm sorry if its wrong }

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870