Use the following information to answer questions 30–33.
The chart below provides some facts about 4 planets in our solar system.
*The strength of surface gravity refers to the gravitational acceleration of an object near the surface of the planet. The values given are percents of 32.2 ft/sec2 (feet per second per second), which is the gravitational acceleration of an object near the surface of Earth.
33. The formula gives the conversion from F degrees Fahrenheit to C degrees Celsius. The formula K = C + 273 gives the conversion from C degrees Celsius to K kelvins. To the nearest integer, what is the average surface temperature, in kelvins, of Mars?