Madeline is going to invest in an account paying an interest rate of 4.4% compounded annually. How much would Madeline need to invest, , for the value of the account to reach $16,600 in 12 years

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