Answer:

Step-by-step explanation:
The formula of an area of a rectangle:

l - length
w - width
We have

Substitute:
<em>divide both sides by 15</em>

The formula of a perimeter of a rectangle:

Substitute:

-4 is Less than -3 is the answer
Answer:
-1/2
Step-by-step explanation:
4 different pairs of marker combinations can be formed