The top deck of a boat is 9 feet above the surface of a lake, while the bottom of the boat is 24 feet below the surface of the lake. What is the vertical distance between the top deck and the bottom of the boat?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Write the equation of the circle centered at (10,-2) with radius 2

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.