Which of the following represents the shaded area as a fraction, a decimal, and a percent of the whole?

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

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

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.