Average = Mean
To find the mean, add up the numbers and divide it by how many numbers there are.
So,

There are 5 numbers in total.

To do these types of division, ignore the decimal and add a 0 at the end.
So we can do:

And put back the decimal.
Hope this helps :)
Answer:
L=55 ft, W=49 ft
Step-by-step explanation:
W=L-6
perimeter= 2L+2W
208=2(L-6)+2L
L=55
W=55-6
=49
Answer: It's 18%
Step-by-step explanation:
Let acute angle be x.So x+5x+90=180 so x=30