Mr kewin created a pattern with a total of 91 shapes. His base Unit was made up entierly of 4 triangles and 3 rhombuses. How many more triangles were in the total pattern compared to the number of rhombuses? justify your answer by showing any necessary work.

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