Find the function rule
X Y
0 -5
10 15
20 35
y=___

What are different types of statistical programs

Can you me find the missing length. i attached an image.

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