Write a complete C program and function to calculate the pressure of air inside a sphere. The main program reads the mass of air inside the sphere m (kg), the air temperature T (K), and displays the pressure of air, P (kPa) which is computed using a programmer-defined function named pressure. The air pressure is given by P = 0.287mT/V where V is the volume of sphere which is 0.5 m³.

## Please just write the codes down no need for Extra explanation details.