Answer: 
Step-by-step explanation:
Rewrite it in the form  , where
 , where 

Use Square of Sum: 

 
        
             
        
        
        
Answer:
AB , AD , EF , EH all intersect AE ⇒ answer (c)
Step-by-step explanation:
∵ AE segment passing through A and E
∴ Each segment passing through A and E intersects AE
∴ AB intersects AE at A
∴ AD intersects AE at A
∴ EF intersects AE at E
∴ EH intersects AE at E
∴ The answer is (c)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
c. 11
Step-by-step explanation:
Bottom row: 6 cubes
middle row: 4 cubes
top row: 1 cube
11 cubes total.
 
        
             
        
        
        
Since 80% of the 300 total points is 240, and we have 127 so far, 240-127=113 as a minimum
        
             
        
        
        
It’s C, i just did it and i got 90% of them right. It’s C.