(A) x > 0
(B) y > 0
(C) xy > 0
(D) x − y > 0
(E) x + y > 0- If the average (arithmetic mean) of 5, 7, 9, 15, and s is equal to 2s, what is the value of s?
(F) 4
(G) 5
(H) 7
(J) 8
(K) 10- If |r + 7| = 6 and |2r − 2| = 4, then what is the value of r?
(A) −13
(B) −3
(C) −1
(D) 3
(E) 13- What positive number, when squared, is equal to the cube of the positive square root of 16?
(F) 64
(G) 56
(H) 32
(J) 8
(K) 3