2 d Find, with explanation, a sequence with two different starting terms
which contains five consecutive terms that are even and not all iden-
tical. Use diginacci​

what i would say the best answer is a. 40.5

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