What is the area of the following circle? d = 8

100 points, hi, i’m not sure how to get the equation from the graph and table.

What number line represents the solution set for the inequality -1/2 greater than or equal to 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