6. The variable k represents a value in the set {3,5,7,9). Which value of k makes the statement below true? *
2 (4 + k)- 11 = 15
O A. 3
O B.5
O C.7
O 0.9

5. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%