A triangle has one angle that measures 81° and one that measures 37° what is the measure of the third angle

In the triangles, bc =de and ac fe. if the mzc is greater than the mze, then ab isdfelth

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

Arace is 10 kilometers long. markers will be placed at the beginning and end of the race course and at each 500 meter mark. how many markers are needed to mark the course for the race?