Answer:22
Step-by-step explanation: since f(8) so x=8 
 substitiuting x in 2x+6
                                       f(8)= 2x8+6=22 
so f(8)=22
Hope this helps! :)
 
        
             
        
        
        
Answer:
it is b
Step-by-step explanation:
 
        
             
        
        
        
As you want a 60% discount, you must find 40% of $12.25.
40% of $12.25 is the same as 2/5 of $12.25.
Now, 12.25 / 5 = 2.45
And, 2.45 x 2 = 4.90
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This means that 60% off $12.25 is $4.90.
        
             
        
        
        
Answer:
Step-by-step explanation:
13 - [4 *(8 - 5) + 2 - 9] * 2 =
13 - [ 4 (3) + 2 - 9] * 2 =
13 - [ 12 + 2 - 9] * 2 =
13 - 5 * 2 = 
13 - 10 =
3