Terry spent a total of 2 1/2 hours working on a school project. Terry spent 2/5 of the total time on research, which is ___ hourrs

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Arecipe calls for 2 2/4 cups of raisins, but julie only has a 1/4 measuring cup. how many 1/4 cups is needed to measure out 2 2/4 cups of raisins?