a-d please asap

Problem I ( 30 points): An aircraft is flying at an altitude corresponding to a pressure of 688.96lb/ft2. At this altitude, the aircraft can fly at three different speeds, corresponding to Pitot tube readings of 761.15lb/ft2, 865.30lb/ft2, and 955.66lb/ft2 respectively. a. What altitude is the aircraft flying at in units of feet? b. For each of the three Pitot tube readings, what would be the corresponding speeds in ft/s ? c. What are the corresponding values of the dynamic pressure at each of these speeds? d. What would be the associated equivalent airspeeds