Answer:

Step-by-step explanation:
Let
be the shaded area and
be the unshaded area, then we know that
(1). 
and
(2).
We solve for
in the first equation and get:

and put this into the second equation and get:




Answer:
12 kilograms
Step-by-step explanation:
Let's construct an equation for her profits, we will call it P(x), where x is the number of kilograms produced/sold.
We know she has -$108 profit from buying supplies, and for each kilogram she produces, she earns -$16 (or loses $16, if earning negative money bothers you). However, we also know that she earns $25 per kilogram sold.
Constructing the equation with this information, we get: 
Setting this equation to zero and solving for x:



Answer:
5 in
Step-by-step explanation:
Answer:
167.5
Step-by-step explanation:
For surface area all you have to do is multiply each number by one of the other numbers x2.