What is the ratio of the average (arithmetic mean) height of students in class X to the average height of students in class Y? (1) The average height of the students in class X is 120 centimeters. (2) The average height of the students in class X and class Y combined is 126 centimeters. A. [...]

The proposed urban development zones do not represent a new principle; it was employed in “Operation Bootstrap” in Puerto Rico. (A) do not represent a new principle; it (B) represent not a new principle, but one that (C) are not a new principle; the same one (D) are not a new principle, but one that [...]