-t-3 and 3-t are not the same since t-3 would result in a negative answer since both -t and -3 are negative. While in t-3 t is positive and -3 is negative. it is wrong if its left as t-3 since -t-3=3-t is false.
 
        
             
        
        
        
Answer:
-3a-2b+3ab
Step-by-step explanation:
2a-5a
-4b+2b
 
        
                    
             
        
        
        
The correct answe would be C...
        
                    
             
        
        
        
False...it does not include 3....it includes only numbers less then 3.
For it to include 3, u would need an equal sign in there..
Y < = 3...(thats less then or equal)...this would include 3
        
             
        
        
        
Given Information
The radius is 3. 
Circumference
To find the circumference, use 2πr.
2*3.14*3=18.84
The circumference is 18.84 cm^2. 
Area
To find the area, use πr^2. 
3.14*3^2=28.26
The area is 28.26 cm^2.