The sum of the real numbers x and y is 11. Their differences is 5. What is the value of xy

The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

What additional information could be used to prove abc =mqr using sas? check all that apply.