Find the set (A U B)'.
U = {1, 2, 3, 4, 5, 6, 7}
A= {1, 5, 6, 7}
B = {1, 3, 7}

Is a positive integer raised to a negative power always positive

Atorch and a battery cost 2.50 altogether. the torch costs 1.50 more than the battery. what fraction of the total price is the torch? give your answer in its simplest form.

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%