What are the answers for 10- show answer and need the answer asap.. you

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

Arational number that is equivalent to -20/4?

How many square centimeters of wrapping paper will be used to wrap the shoe box?