The first step to solve this question is to calculate the total pressure by finding the sum of the pressure of the tire and the atmospheric pressure:
The total pressure is 44.7psi. Nevertheless, they ask for the pressure in Pascals, so the next step is to convert this pressure in psi to pascals using a conversion factor. We know that 1 psi equals 6894.76Pa, use this as a conversion factor to find the pressure in pascals:
It means that the total pressure of the tire in pascals is 308195.77Pa.