She will need 9 computers. She has 8 groups of 3 and 1 group of 2. Therefore, she will need 9.
Answer:
900°
Step-by-step explanation:
The sum of interior angles of a polygon with 
sides is given by:
Sum = 
Here, <u>the polygon has 7 sides</u>, so 
. Plugging this into the formula gives us:
Sum = 
So the answer is the first choice, 900°.
Answer:
neither
Step-by-step explanation:
Anything that has mass and takes up space
Perimeter of a square = 4s = 20ft
s = 20/4 = 5 feet
New length = 5 + 2 = 7 ft
New width = 5 - 1 = 4ft
New perimeter = 2(7 + 4) = 2(11) = 22ft
