Aplane was flying 4,000 feet in the sky, and a skydiver jumped out. after he had fallen 2,000 feet, he was just 550 feet higher than the top of the sears tower. how tall is the sears tower?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

Benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r