Question

an astronomer uses a telescope to observe a star. the color of the star indicates that it has a size and surface temperature similar to that of the sun. using this information, the astronomer can conclude that the star
is older than the sun.
will survive for several billion years.
is moving very quickly away from earth.
has a mass similar to the mass of jupiter.

Explanation:

The Sun is a main - sequence star. Stars with similar size and surface temperature (and thus similar mass as size and temperature are related to mass for main - sequence stars) to the Sun are also main - sequence stars. Main - sequence stars like the Sun have a long lifespan (several billion years). There is no information given about the star's age relative to the Sun (age is not directly related to size and surface temperature in a simple way for a single observation), no data on its motion (redshift or blueshift would be needed for that), and Jupiter is a planet (much less massive than a star like the Sun).

Answer:

will survive for several billion years.