How many ways can you pick a president, secretary and treasurer from a group of 12 people? a.) 479,001,600 b.) 20,736 c.) 11,880 d.) 19,958,400

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x