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.
5 Vince draws the figures below. He says each figure has an area of 8 square units. Is he correct? Decide if each figure has an
area of 8 square units. Choose Yes or No for each figure. 
1 answer:
You might be interested in
The given formula
Solve for y means we have to make y alone
\\
Add -10 on both sides, we get
As there is multiplication sign between r and y so to solve for y, divide both side by r