16 because 8 rooms have 8-11, 5 rooms have 4-7, and 3 rooms have 0-3 guests.
3x(x+3)^2
3x(x^2 + 6x + 9)
= 3x^3 + 18x^2 + 27x
answer
3x^3 + 18x^2 + 27x
I believe that this is known as transaction costs since the definition of this is
the cost of going into another market
I think you are asking for help because maybe you are nervous to guess....but really just trust your first answer! and think about it!! you are so smart you can do it;) (cuz smart pple ask qs;))