Volume = (pi 3.14)(r^2)(h)
(3.14)(49)(18)
(153.86)(18)
2769.48
Answer:
b
Step-by-step explanation:
Surface of the earth =3959×3.14
=12,437.565
if 20%is suitable so we multiply it by the surface
12,437.565×0.2=2,487.513 per people
2,487.513/7,700,00,00
So I think it will be the closest to b
15.1 f
Step-by-step explanation:
-13.4+25.8= 15.1 F