I've been at these problems for HOURS!!!
In the expression below, each letter represents a different digit.
A^5 + B^5 + C^5 + D^5 + E^5 = ABCDE
and
In the array of numbers below, what number should go where the question mark is?
3 11 21 41 91
6 14 15 23 53
3 5 6 8 ?
I would really appriciate any help I can get, thanks very much! (: