Aregular pentagon has a side length of 6n + 2. write three different expressions that can be used to calculate the perimeter of the pentagon. someone me i'll give you brainliest!

The lengths of two sides of a triangle are 9 and 15. what can be said about the length of the third side? a. it must be greater than or equal to 6 and less than 24. b. it must be greater than or equal to 6 and at most 24. c. it must be greater than 6 and less than 24. d. it must be greater than 6 and at most 24.