Answer: 7 feet
Step-by-step explanation:
Since all 4 sides of a square are equal, you do 28 / 4 = 7 feet, which is the answer.
 
        
                    
             
        
        
        
Answer:
C) -144^¹/₃
Step-by-step explanation:
Having a number to the power of a fraction is the equivalent of rooting by its reciprocal. So, the sixth root, fourth root, cube root, and square root. Only odd roots can have negative answers (∛x, x can be negative; √y, y can not be negative unless we talk about imaginary numbers).
Since we are looking for a real number, C, showing a cube root of a negative number, must be the answer.
 
        
             
        
        
        
Answer:
My guess would be 
C. multiplicative identity property
 
        
             
        
        
        
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
x
=
−
7
8
Decimal Form:
x
=
−
0.875
Step-by-step explanation: