Answer:
5 over 4x
i used photomath so it should be right 
 
        
             
        
        
        
Answer:
263.76yd^2
Step-by-step explanation:

 
        
             
        
        
        
Answer:
6^6
Step-by-step explanation:
6^4 x 6^3 / 6^-1
exponent rule add exponents 4+3=7 so 6^7
exponent rule subtract exponents 7-(-1) so 
Answer= 6^8