Total Cost in a day is

. Profit function is

. And the revenue function is

. In a day, bookstore must sell at least 15 books, because of 6n-90=0, in order to make profit.
Answer:
zero property of addition
Step-by-step explanation:
Answer:
Im not sure but i think the answer is 7 9/15
Step-by-step explanation:
Answer:
units.
Step-by-step explanation:
The given functions are:

and

The function
has y-intercept ,
.
The function
has y-intercept, 
If we shift the graph of g(x) up to obtain f(x), then the y-intercept must move from
to
.
This means that the graph will move up by;
units.
9.75 x 7.2 = 70.2
Swimming Pool Area: 70.2
The Park Area: 70.2 x 1.5 = 105.3
Total Area of both Swimming Pool & Park area: 70.2 + 105.3 = 175.5
Final Answer: 175.5