Volume of Pyramid, Cone and Sphere

A triangular pyramid has an isosceles triangular base. The base of the triangle is 12 inches, the height of the triangle is 16 inches, and the height of the pyramid is 4.8 inches. What is the VOLUME of the pyramid in cubic inches? 
Reference Material  $$V\ =\ \frac{1}{3}Base\ Area\ \times\ h$$  

A snack bar sells popcorn in cone-shaped containers. One container has a diameter of 8 inches and a height of 10 inches. How many cubic inches of popcorn does 3 containers hold? (Use $$\pi=3.142$$ )

A square house has a pyramid-shaped attic built under the roof, which you are converting into a spare bedroom. You are installing an air conditioner to cool the room. The perimeter of the base of the room is 190 ft. How many cubic feet of air are in the attic?

Find the volume of the cone. (use $$\pi=3.142$$ )

Calculate the amount of ice cream this cone can hold (just to the top of the cone) . Use $$\pi=3.142$$ and round to the nearest hundredth.

The volume of a cone is 678.24 cubic inches. What is the height of the cone? (answer in integer)

You have a globe that has a radius of 11.3 cm. Find the volume of your globe. Use $$\pi=3.142$$ .

There are 54 solid hemisphere, each of diameter 2 cm, are melted to form a single sphere. Find the radius of the newly formed sphere? Use $$\pi=3.142$$

The sphere and cone have an equal volume. Find the radius of the sphere. (use $$\pi=3.142$$ )

Find the volume of a hemisphere (a half of a sphere) with a radius of 27 cm.