Solution:- Given that the total revenue function
,where x is the number of rooms filled
Now, differentiating the function w.r.t. x,we get

To find critical points ,Put 

Answer:
The answer would be 11 1/3 ft sqared
Answer:
7 and one-half feet squared
Step-by-step explanation:
3 x 2.5 = 7.5
The Answer Is 18
Order Of Operation laws says that you must do the parentheses first, 45x2.
45x2=90
The next thing you must do is divide 90 by 10 since division is before addition.
90/10=9
Now combine like terms.
9+9=18