Kevin is an auto mechanic. he spends 2 hours when he replaces the shocks on a car and 2 hours when he replaces the brakes. he works no more than 54 hours a week. he routinely completes at least 4 shocks replacements and 6 brake replacements a week. if he charges $450 for labor replacing shocks and $200 in labor for replacing brakes, how many jobs of each type should he complete a week to maximize his income? kevin should do shock replacements and ? brake replacements every week to maximize his weekly income

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.