Hi there !
The answer is B. angle 4.
An alternate interior angle is diagonally across one angle on the inside of the transversal. Opposite of 5 on the inside is angle 4. 
Hope this helps !
        
                    
             
        
        
        
2 over 5 tho yes it’s also 3x + 1 over 4y2
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
30
 
        
             
        
        
        
Answer:
Diameter of tank = 19.5 ft
Step-by-step explanation:
Volume of cylinder = Base area x Height.
Base area = Area of circle

Height = 20 ft.
Volume of tank = 6000 cubic feet .

Diameter of tank = 19.5 ft