3) Ben wants to make 100 candles in the shape of a cone for his new candle business. The mold shown below will be used to make the candles. Each mold will have a height of 8 inches and a diameter of 4 inches. To the nearest cubic inch, what will be the total volume of 100 candles?

Isabella's sandpit measures 4 ft by 3.5 ft by 2 ft. Her parents go to the store to buy bags of sand to fill it up. Each bag has 2 cubic feet of sand in it. How many bags do her parents need to buy? A. 7 bags B. 14 bags C. 21 bags   D.28 bags  thanks

A water tank measures 1.4 m by 80 cm by 60 cm. Find its capacity (the volume of water it can hold) in litres.

The volume of an enclosed gas is based on the volume of its container. Increased pressure can force gas into a smaller enclosure. An oxygen tank shaped like a cylinder holds 4.9 cubic feet of gas and is 35.0 inches tall. Its contents are released into a second cylindrical tank that is 50.0 inches tall with a 5.25-inch radius. Note: 1 ft3 = 1,728 in³. 1. What is the radius of the first tank in inches? 2. What is the volume of the second tank, in cubic inches? 3. By how much will the gas expand or contract to fill the second tank? 4. Is the pressure in the second tank greater or less than the pressure in the first tank? Use 3.14 to approximate pi and round your answers to the nearest tenth of a unit, when appropriate.