Joe Ravioli went running 3 days this week. He ran 2 mi on Monday, 2 3/10 mi on Wednesday, and 3 2/5 mi on Friday. How far did
he run all together this week?
(A) 81/5 miles
(B) 8 3/8 miles
(C) 8 1/2 miles
(D) 1/8 miles

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

i believe it's a.

i'm not sure on this one, most likely correct.

step-by-step explanation:

for volume, add base x height x width