Answer:
He needs to get 96%
Step-by-step explanation:
Add 96 89 77 and 78 together and divide by 4, it should be 85
 
        
             
        
        
        
Answer:
   Square
Step-by-step explanation:
The length of AB is (a+b)-a = b. The length of BC is b-0 = b. So, adjacent sides are the same length. AB has a constant y-value, so is horizontal. BC has a constant x-value, so is vertical.
A figure with horizontal and vertical sides of the same length is a square.
 
        
             
        
        
        
Answer:
$28
Step-by-step explanation:
First to solve this get the original amount before his parents gave him $6
20-6=14
So he had $14 after spending it at the batting cages.
It is stated he spent half of his money there so multiply 14 by 2
14 x 2=28
So he has a weekly allowance of $28
 
        
             
        
        
        
You did the top right but the denominator is 0 so the slope in undefined or 0.
Hope this helps!