As the number of weeks increases, the number of books read increases by a factor of 9. Which equation represents the situation above? A. b = 9w B. w = 9b C. b = 9+ w D. w = 9 + b ​

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