To write 0.09 as a decimal you have to divide numerator by the denominator of fraction 0.09 us not a fraction so it is a decimal already and finally we have 0.09 as a decimal equals 0.09 
9/100=0.09 also 
i hoped i help :)
        
             
        
        
        
Answer:
f(x)=-13
Step-by-step explanation:
Substitute x with -2 
4 times -2 is -8
-8-5 is -13
Thus f(x)=-13
Hope this helps!
 
        
             
        
        
        
(4x-3)(x+5)
= 4x^2+20x-3x-15
= 4x^2+ 17x -15.
The final answer is 4x^2+ 17x -15~
        
             
        
        
        
Answer:
19
Step-by-step explanation:
5 + 4^2 - 6/3 
= 5 + 16 - 2
= 21 - 2
= 19
 
        
             
        
        
        
Answer: <em>936 cm²</em>
Step-by-step explanation:
<em>A = (18 × 24 × 0.5) × 2 + (18 + 30 +24) × 7 = 936 (cm²)</em>