Answer:
rational, integer, whole
Step-by-step explanation:
The picture is a bit blurry but the perimeter of a shape is the lengths added.
(4a - 2b) + (7a + 3) + (9a - 4) = perimeter, I added the sides together
Combine like terms to get:
4a + 7a + 9a = 20a
-2b is left along becuase there are no other like terms
3 - 4 = -1
The perimeter is 20a - 2b - 1
As a decimal it is 0.2285714
THE NUMBERS AFTER THE DECIMAL NEED A LINE OVER THEM. They keep repeating themselves. Have a good one babes.
