If A and B are independent, then  .
.
a.



b. I'm guessing the ? is supposed to stand for intersection. We can use DeMorgan's law for complements here:



c. DeMorgan's law can be used here too:



 
        
             
        
        
        
Answer:
I believe Commercial Mathematics is the kind of mathematics for the bussiness world. Where you calculate: There are 12 productions and three companies. Two companies already took 8 productions. How many productions will the last company take?  Stuff like that.
 
        
                    
             
        
        
        
Answer:
Since Family's Financial Situation and Religion seem more of a Family Discussion, I would round 46% to 50%. Then 37% to 40%. Add 50% and 40% and you'll get 90%. 
Step-by-step explanation:
And by percent confidence level, I hope you're talking about mine...I would say 99% confidence level....lol
 
        
             
        
        
        
Answer:
she'll use in total 1/5 + 3/5 = 4/5 from her 16 pounds of peanuts so 4/5 * 16 = 12.8
Not entirely sure about my answer