GRE Exam Numerical Ability Area and Volume

If a triangle ABC is equilateral and side AB has a length of s, then what is the area of triangle ABC in terms of s ? (A) 3s² (B) √3 s² (C) (√3/4) s² (D) s²/4 (E) (√3/2) s²

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GRE Other Question

x, y and z are integers such that xy + z = 7, xz + y = 5 and x + y + z = 6. What is the value of xyz ? (A) 9 (B) 6 (C) 12 (D) 15 (E) 10 Find which quantity is greater
(a+b)² = 34
ab/2 =6
Quantity A: a²+b²
Quantity B: 11

A) Quantity B is greater
B) The relationship cannot be determined.
C) Quantity A is greater
D) The two quantities are equal.