12 sq. in. in a foot i think
The slope of the tangent line to

through the point

is given by the derivative:

The value of the derivative is zero when

, which happens for infinitely many points

where

is any integer.
Answer:
84 cubes but im not sure if youre saying the cubes are 1/2 inch or smth else
Step-by-step explanation:
For a rectangle,
area = length * width
We can solve the equation for width.
width = area/length
Divide the area by the length to find the width.
width = (201.5 in.^2)/(13 in.) = 15.5 in.
Answer: the width is 15.5 in.
Just you need graphing these two lines and where will intersect these two lines so this will be the solution of the system