What is the greatest common factor of 8 and 16

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

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

Ahighway between points a and b has been closed for repairs. an alternative route between there two locations is to travel between a and c and then from c to b what is the value of y and what is the total distance from a to c to b?