The function f(t) = 3300(0.91)12t represents the change in a quantity over t years. What does the constant 0.91 reveal
about the rate of change of the quantity?

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