Answer:
It's B, the second graph
Step-by-step explanation:
I just did the quiz
 
        
                    
             
        
        
        
Log₄20-log₄ 45+log₄144=
log₄(20/45)+log₄144=                        (log_a b- log_a c=log_a  (b/c) )
log₄[(20*144)/45]=                             (log_a b +log_a c=log_a (b*c) )
log₄(2880/45)=
log₄(64)=n     ⇔      4^n=64                (log_a x=n   ⇔ a^n=x)
4^n=4³      ⇒n=3                                 (64=4*4*4=4³)
Answer: log₄20-log₄ 45+log₄144=3
        
             
        
        
        
Answer:
25.12
Step-by-step explanation:
The formula of the circumference of a circle is: C = 2(pi)(r)
Plug in 3.14 for pi and 4 for the radius.
C = 2(3.14)(4)
Multiply. 
C = 25.12 
 
        
             
        
        
        
Answer:
It has to burn at a rate of 2.25 cm per hour.
Step-by-step explanation: