Answer:
B) 
Step-by-step explanation:
Area of a rectangle formula:
A = bh
Given:
b = 
h = 
Work:
A = bh
A = 
A = 
I believe this is a copy of an angle
For this case, the first thing we must do is define variables.
We have then:
x: number of pens
y: number of pencils
We now write the system of inequations:

The solution to the system of inequations is given by the shaded region.
Note: see attached image.
The new cost would be 1661.175 if u want it rounded it would be 1661.18 because you would need to do 1444.5 x .15 and then add that to 1444.5