Thé correct answer is the third one
 
        
        
        
It’s A I just took that trust me
        
                    
             
        
        
        
Answer:
Answer is in pictures
Step-by-step explanation:
36=6x6 90=9x10
256+7=263 104=98+6-2
678=678 81+9=90
 
        
             
        
        
        
Answer:
Given
f(x) = 2x+7
g(x) = x^2-4
h(x) = 5x
a. 4h(x)
= 4 * 5x
= 20x
b. f(x) - g(x)
f(x) - g(x) = 2x + 7 - (x^2 - 4)
= 2x+7-x^2+4
=-x^2+2x+7+4
=-x^2+2x+11
c. f(g(x)) = 2(g(x))+7
=2(x^2-4) +7
=2x^2-8+7
=2x^2-1
d. g(x)h(x) = (x^2-4)(5x)
= 5x^3 - 20x
e. g(x) / f(x) = x2 - 4/ 2x + 7
 
        
             
        
        
        
Answer:
314
Step-by-step explanation:
get out now 
So you divide the diameter by 2 to get the radius which would give you 10. Then multiply the radius twice so 10×10=100 thrn multiply by pi. 100x3.14=3.14