A line segment is shown. Let A' B' be the image of AB after a reflection across the line y=x. What are the coordinates of A' and B'?

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

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

Write the percent as a fraction or mixed number in simplest form. 0.8%