An elevator starts at the lobby and makes 44 stops. the positive numbers stand for going up, and the negative numbers stand for going down. which expression gives the total number of floors traveled during the 44 stops?
a.|9+-12+5+-8|
b.9-12+5-8
c.|9|+|-12|+|5|+|-8|
d.|(+9)+(-12)+(+5)+(-8)

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.