You buy 2 pairs of shoes in a sale. you pay the full price of $ 48 for the first pair, and you get the second pair for half this price. what fraction of the full price do you pay for 2 pairs of

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236