Grocery store selects the winner, or winners, of a $25 and $50 gift card by first randomly selecting a single entry from all entries, placing that entry back into the pool, and then randomly selecting another entry. Are the events "winning the $25 gift card" and "winning the $50 gift card" independent or dependent? Explain.

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.