\left[x \right] = \left[ \frac{3}{8}\right][x]=[83] totally answer
        
             
        
        
        
If she shot her average she would make 30 out of 50 shots (AKA 60%) 
She could use the index cards to record each shot, recording 5 results on each one of the 10 cards
I understand this answer is really late for you but I hope you can still use it or someone else can use it if they have the same assignment
        
                    
             
        
        
        
Answer:
C. x=8.5
Step-by-step explanation:
-18+3x+x=-2(2x-25)
-18+4x=-4x+50
    +4x   +4x
-18+8x=50
+18      +18
8x=68
8    8
x=8.5
 
        
             
        
        
        
Answer:
   (d)  0.8736
Step-by-step explanation:
Unless you have a table of the normal distribution available, this is a calculator problem. Your calculator, or any spreadsheet, can tell you the probability is ...
   P(-1.23 ≤ z ≤ 2.12) ≈ 0.8736