Answer:
20
Step-by-step explanation:
Multiply 3 and 7 by 2 and you get 6 and 14          6+14=20 which is the perimeter
Hope that helps!
 
        
             
        
        
        
Answer: C. 10-2
 3+7 = 10
So you need to find which value is less than ten
A is wrong because 7+3= 10 and 10 is not less than 10
B is wrong because 9+4 = 11 and 11 is not less than 10
D is wrong because 10-2 = 10 and 10 is not less than 10 
C is right because 10-2 =8 and 8 is less than 10
        
                    
             
        
        
        
Multiply 1/4 by 2 to get 2/8. Don't forget to add 2 to your 2/8. That means that 2 2/8 minus 3/8 equals 1 7/8
        
                    
             
        
        
        
Answer:
D 13
Step-by-step explanation:  L+L+W+W=Perimeter
2(1/4x)+2(2x+1)=4.5x+2             
4.5x+2=29        Subtract 2
4.5x=27             Divide by 4.5
x=6                                                            1/4(6)= 1.5 W=1.5      1.5(2)=3
                                                                  2(6)+1=13                  13(2)=26
                                                                                    26+3=29inches perimeter
 
        
                    
             
        
        
        
All you need to do is go on the internet and it tells you what the answer is