Chris has two tanks of helium gas. She wants to find out which tank has the most gas in it ,so she can blow up balloons for a party. Chris thinks that measuring the masses of the two tanks will identify which on contains the most gas. Will comparing the mass of the tanks help Chris know which one has the most gas in it? explain why or why not

In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.