What values do the variables mass and age have after each of the following statements? Test your answer by executing the lines.
mass = 47.65
age = 122
mass = mass * 2.0
age = age - 20
`mass` holds a value of 47.65, `age` does not exist `mass` still holds a value of 47.65, `age` holds a value of 122 `mass` now has a value of 95.0, `age`'s value is still 122 `mass` still has a value of 95.0, `age` now holds 102