What is the total pressure of an air stream in motion?
The total pressure assumes that the is an isentropic evolution from air in movement up to an static state. The total pressure is the pressure at such state.

The way to compute this "made up" variable you need to compute the static pressure and the dynamic pressure (driven by the air speed).

So the answer is:


the sum of the dynamic and static pressure


But remind that is not "a real property" but more a way to measure the maximum pressure that can be achieved from a fluid in movement without adding extra energy.