A store is offering 15% off all shoes. Ayla purchases shoes and clothes. The expression representing her total cost (including 9% tax) is
c+ (1 -0.15)s +0.09[c+ (1 - 0.15)). Which term represents the cost of the
shoes after the discount?
O A. [c+ (1 - 0.15)s]
B. 0.09[c+ (1 - 0.15) s]
O C. (1 -0.15)s
D. (1 - 0.15)

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.