The sea surface temperatures range from -2 degrees Celsius to 31 degrees. Determine the difference between the maximum and minimum temperatures.

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25