I really need help on this Write an equation of the line passing through the point (6,-4) that is perpendicular to the line y=1/3x-9

What is r i 4.5+10r=-6.5 with work pls

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

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