Answer: 8
<u>Step-by-step explanation:</u>
The formula for the sum of the angles of a polynomial is:

1080 = 180(n - 2)
1080 = 180n - 360
1440 = 180n
8 = n
Well you would subtract 0.4 by 0.3 and get 0.1. So 0.1 is your answer
She will make 9 rows because 27 + 27 = 54 and divided by 6 =9
Answer:

Step-by-step explanation:
U can reduce this into

Which is a square.