Answer:
C
Step-by-step explanation:
Surface Area of a cone is
<span>pi * r * s + pi * r^2 </span>
<span>s is the side length, since you have 10 ft diameter, you know radius is 5. And since height is 12. With this, you have a 5-12-13 triangle, and s=13. </span>
<span>so </span>
<span>pi * 5 * 14 + pi * 5^2 = 95 pi or 298.3 </span>
<span>divide 298.3 by 15 and you get 19.88, you round up, so 20 is the answer </span>
Likely bc it is definitely not certain, nor impossible, but it is more likely then unlikely
Let's see
so you have to add the bottom numbers and the top numbers then add the whole numbers so it's 23 15\28
The picture is unclear so I cannot really help. I'm sure I could if it was clearer though.