Question #1 has no instructions. How do you complete #1

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?