What is the approximate volume of a tree trunk if the trunk is 15 feet tall with a circumference of 4.5 feet?

Step-by-step explanation:

we know that

The volume of a cylinder is equal to

where

r is the radius of the base of the cylinder

h is the height of the cylinder

In this problem we have

Remember that

the circumference of a circle is equal to

Solve for r

substitute

Find the volume

i really dont know

step-by-step explanation:

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads