Answer:
21
Step-by-step explanation:
10% of 30 is 3 then 1/5 of 30 is 6 so 3+6=9 then 30-9=21
136-28 = 108
108/2 = 54
Answer : 54
Answer= 12 (feel free to correct me if i'm wrong fellas)
method= ok, so first we need the volume of the cone. using the formula v=pir^2h (pi x radius^2 x height) we get 2.09.
now we need the volume of the cylinder, in which v=pir^2h (pi x radius^2 x height)
we get 25.12
dividing 25.12 by 2.09 we get 12.0191388, which we round to 12.
hope this helps