The answer to this would be 5x+6>=21. Just wanted points :P
        
             
        
        
        
Answer: Option 'A' is correct.
Step-by-step explanation:
In the binomial probability formula, we have 

Here, n = number of events
x = number of trials
p = probability of success
q = probability of failure
x is the number of trials among which we decide the number of successes and number of failures.
So, Option 'A' is correct.
 
        
             
        
        
        
4y-6y+10
10y+10
COMMENT FOR A BETTER EXPLAINATION
        
                    
             
        
        
        
Answer:
g(3) = 10
Step-by-step explanation:
g(3) = 2x + 4
g(3) = 2(3) + 4
g(3) = 6 + 4
g(3) = 10