Answer:
719
Step-by-step explanation:
addition yes
just do it like nike said
Answer:
Stationery section will be 4 feet wide.
Step-by-step explanation:
Total area of bookstore = 288 sq ft
Area to be devoted to stationery =
of total area = 
Length of stationery section = 12 ft
To find:
Width of stationery section = ?
Solution:
First of all, let us have a look at the area of rectangle:

Here, we are given the length for stationery section and area of stationery section has been calculated above.
And we have to find the Width of stationery section.
So, let us put the two values to find the third value.

So, the answer is:
Stationery section will be 4 feet wide.
Please put a more clear picture
Answer:
square roots are absolute values
Step-by-step explanation:
they cannot be any integer or negative number. they had to be an absolute value