Each square below represents one whole. What percent is represented by the shaded area?

Pls help

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?