What is the maximum and minimum number in the range of a 7-digit number for each of the following cases? Express all numerical answers in both the original base and its decimal (base-10) equivalent. For each case, also express the total number (in base-10) of distinct numbers that can be represented by the number scheme. Show all your work.
(a) binary (2's complement)
(b) base 17 (positive integers)
(c) base 6 (6's complement)