y = 7 + 3x
y = 3x + 7
y = mx + b, therefore the y-intercept is 7.
3y =  6x + 12
y = 2x + 4
y = mx + b, therefore the y-intercept is 4.
 
        
             
        
        
        
Hi there! 
The formula for the volume of a cone is V = 1/3(pi x r^2 x h). Using this formula, we can solve for the volume of the cone.
WORK:
V = 1/3(3.14 x 6.5^2 x 14)
V = 1857.31 / 3
V = 619.10 cm^3
ANSWER:
A) 619.10cm^3
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
        
                    
             
        
        
        
.01 + .01 = .02
.01 - .01 = .00