If i'm mistaken; he needs to buy 3 sheets?
Answer:
The maximum revenue is 16000 dollars (at p = 40)
Step-by-step explanation:
One way to find the maximum value is derivatives. The first derivative is used to find where the slope of function will be zero.
Given function is:

Taking derivative wrt p

Now putting R'(p) = 0

As p is is positive and the second derivative is -20, the function will have maximum value at p = 40
Putting p=40 in function

The maximum revenue is 16000 dollars (at p = 40)
Your answer is this
13,700
Because
x=y
The line cuts the X axis at
and is parallel to the Y axis.
Thus the equation of the line is $\boxed{x=3}$
Answer:
Proper: 3 and 1/5 Improper: 16/5
Step-by-step explanation:
4 times 4/5 = 16/5
5*3=15
16-15= 1
3 and 1/5