On a recent safari, Dr. Eb Tide noted that his group, both men and elephants, had a total of 100 knees and 100 trunks. If each man packed 3 trunks and each elephant had his usual one, how many men and how many elephants were there?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?