A rectangular bathroom floor is covered with square tiles that are LaTeX: 1\frac{1}{2}1 1 2 feet by LaTeX: 1\frac{1}{2}1 1 2 feet. The length of the bathroom floor is LaTeX: 10\frac{1}{2}10 1 2 feet and the width is LaTeX: 6\frac{1}{2}6 1 2 feet.

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