Every

Every year the Nguyen's host a family picnic. They know that the cost for each person, s, varies inversely as n, the total number of people who attend the picnic. When 20 people attend the picnic, the cost for each person in $50. How much would the cost be per person if 15 people attend the picnic instead?

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.