The function n(t) = 80.375t2 + 1,505 represents nevin’s elevation in feet over time in hours. how would you write this in vertex form to find the minimum or maximum? what is the vertex? is it a minimum or a maximum?

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