∆abcis translated 8 units to the right and 6 units down. if a is at (-1,1), b is at (-1,9), and c is at (3,7), what are the coordinates of a', b' and c'?

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