The formula for the perimeter p of a rectangle with length l and width w is a rectangle has length 100 meters. what is the perimeter if the width is 50 meters? what is the width if the perimeter is 344 meters?

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