Tell weather the two rates form a proportion. 15. 7 inches in 9 hours; 42 inches in 54 hours 16. 12 players from 21 teams; 15 players from 24 teams 17. 440 calories in 4 servings; 300 calories in 3 servings 18. 120 units made in 5 days; 88 units made in 4 days 19. 66 wins in 82 games; 99 wins in 123 games 20. 68 hits in 172 at bats; 43 hits in 123 at bats

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.