This looks unusual but let's try it.
x+4=x+8
Let's move the x vales to the left and numbers to the right.
x-x=8-4
0=-4
Hm. This doesn't work, does it?
This equation has no solution. If you believe you typed it wrong, correct it in the comment seciton.
 
        
             
        
        
        
This is simple long multiplication. 347 x 270 is 93,690. Then you divide this number by the amount of acres, in this case, 3. So 93,690/3 is 31,230. Hope this helped
        
                    
             
        
        
        
Answer:
The angle between [A_F] and the base of the cone = 68.2°
The area of the base of the cone ≈ 12.57 m²
Step-by-step explanation:
The given parameters are;
The height of the cone = 5 m
The base radius of the cone  = 2 m
The angle which the A C = 120°
C = 120°
Therefore, we have;
The angle between [A_F] and the base of the cone = The angle between [CF]  and the base of the cone
The angle between [CF]  and the base of the cone = tan⁻¹(5/2) = tan⁻¹(2.5) ≈ 68.2°  
∴ The angle between [A_F] and the base of the cone = The angle between [CF]  and the base of the cone = 68.2°
The angle between [A_F] and the base of the cone = 68.2°
The area of the base of the cone = π × r² = π × 2² = 4·π ≈ 12.57
The area of the base of the cone ≈ 12.57 m².