Which function represents the number if seats in a theater with n rows?

The number of seats in the theater can be calculated by multiplying the number of seats in each row by the number of rows. In this item, we are not given the number of seats present in each row. For the purpose of representation in this item, we let S be the number of seats in each row such that the total number of seats,

     Total number of seats = (number of rows)(number of seat / row)
     Total number of seats = nS = Sn

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's