Width = X
Length = X + 15
Perimeter of a Rectangle = 2W + 2L
2(X) + 2(X + 15)
2X + 2X + 30
4X + 30
Answer = 4X + 30
Hope this helps! :)
The answer is a. increase energy efficiency. This means that we now use less energy to do more thanks to many advances in technology. It could also be due to the use of alternative sources of power such as the sun or win. These new sources provide energy without causing pollution.
tbh google
You will subtract 12 from 260 and get 248 then you will divide 248 by 8 and get 31 dollars spent per book.
1l=1000=>x l=29000000=>x=29000000:1000=>x=29000