Answer:
Step-by-step explanation:
Yo when you get these kind of questions you can use desmos calculator, for the future.
Since they are alternate interior angles, x+25=85.
x+25=85
x=60
x is 60 degrees.
For convenience sake, I will let 
First, we evaluate the function at the endpoints of the interval.

Then, we need to find the critical points.
We can start by taking the derivative using the power rule.

Setting this equal to 0,

Since
, we can divide both sides by
.


So, the absolute minimum is
and the absolute minima are 
Answer:
Divide $26.25 by 3 to find out the cost of the unit price. It is $8.75.