Answer:
Step-by-step explanation:
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:
x = 8
Step-by-step explanation:
10x - 2 (x + 6) = 52
Let X become 8
10 (8) - 2 (8 + 6) = 52
80 - 2 (14) = 52
80 - 28 = 52
52=52
Answer:
Step-by-step explanation:
b
If you are factoring it you can factor it into (x+5)^2