Answer:
1. 7
2. 3
3. 9
Step-by-step explanation:
 
        
             
        
        
        
Answer:
8:3
Step-by-step explanation:
,,,,lol hope it helps i don't know how to explain,,, I guess its just dividing you know like 15÷5= 3 so on
 
        
             
        
        
        
First thing first is to know that there are 3 feel in one yard 
To find the perimeter of the room do 30 times 24 which is 720 divided by 9 ( because 3 feet times 3 feet is nine which represents the square yard) to get to square yards is 80
The answer is 80 square yards