A 12-foot tall house casts a shadow that is 9 feet long. At the same time, a nearby flag pole casts a shadow that is 15 feet long. How tall is the flag pole to the nearest foot?

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