A line contains the following points left to right: R, T, U, S. The space between R and T is 12 units. The space between R and S is 24 units. If TU = 6 units, what must be true?

SU + UT = RT
RT + TU = RS
RS + SU = RU
TU + US = RS

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