Answer:
7. 225, 315
Step-by-step explanation:
 
        
             
        
        
        
P(heads or tails) = 1 This is because when flipping a coin, there are only two possible answers, either heads ir tails so the probability of getting either one is 100%. However, if you're asking for P(heads) = 1/2, and P(tails)= 1/2.
        
                    
             
        
        
        
1 x 10. It is unlikely that someone will run 103 meters in a second, along with 1010.
        
             
        
        
        
Answer:
Ms. Kang is incorrect because there is only one solution to that equation and that is b=5/3
 
        
             
        
        
        
Answer:

Step-by-step explanation:
I assume that you need simplification of the given expression.
The given expression is:

Using distributive property and multiplying 2 inside the parenthesis and 1 inside the other parenthesis. This gives,

Therefore,  is equal to:
 is equal to:

Now, combining like terms using the commutative property of addition, we get:

Therefore, the simplified form is 