Charls invested $140. She earned a simple interest of 3% pee year on the initial investment. If no money was added or removed from the investment, what was the amount of interest Charls received at the ned of two 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