(a) How many three-digit numbers can be formed from the digits 0. 1, 2. 3, 4, 5, 6, and 7 if each digit can be used only once? (b) How many of these are odd numbers? (c) How many are greater than 440? (a) How many three-digit numbers can be formed from the digits 0, 1. 2, 3. 4, 5, 6. and 7 if each digit can be used only once? There are 294 three-digit numbers that can be formed using those digits. (Type a whole number. ) (b) How many of these are odd numbers? There are 144 three-digit odd numbers that can be formed using those digits (Type a whole number.) (c) How many are greater than 4407 There are three-digit numbers greater than 440 that can be formed using those digits. (Type a whole number)