PLEASE HELP If a, b, c, d are positive, and if a b < c d , then which statement is ALWAYS true?
A) ab < cd.
B) da < bc.
C) bc < ad.
D) cd < ab.

Lesson 9-3 for items 8-10, a square is drawn in the coordinate plane, with vertices as shown in the diagram. then the square is reflected across the x-axis. -2 4 8. the function that describes the reflection is (x, y) - a. (x, y-3). b. (x, y-6). c. (-x, y). d. (x,- y).