Answer:
Step-by-step explanation:
step 1
Find the volume of a cone
we know that
The volume of a cone is equal to
we have
-----> the radius is half the diameter
substitute the values
$23
1 phone case = $12
4 phone cases = 12 * 4 = $48
Table = $25
4 phone cases - Table = 48 - 25 = $23
depends on how you understand math.
subtract 4 on both side.