If the diameter is 8 centimeters, the radius is 4. We can use the formula

and plug in r=4 and h=13 to get

, so

.
Point slope formula: y-y1=m(x-x1). Answer: y-7=6(x-(-4))
Answer: 30 ft
Step-by-step explanation:
Cross multiply:
6 : 3.5
x : 17.5
Then divide 105 with 3.5x.
105/3.5x = 30
I think it might be 11x-8
I'm really sorry if that's wrong