The sum of the ages of two brothers is 46. The younger brother is 10 more than a third of the older brother’s age. Which system of equations correctly expressed this situation?

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