Um, what operations? You didn't list any...

is differentiable across its domain, so the MVT says there is some value of

in the open interval

such that

You have

so the equation above becomes

Solve for

.




so

is indeed the average of the endpoints, i.e. the midpoint.

and so the aliens will need 56 power pouches for each day of the trip.
Answer:
I think it is A ..... ........