Please evaluate the correct solution of the given question

Question- During hurricane ike (2008), one of the pressure sensors on the seafloor located at 10 km offshore of Galveston, recorded a pressure fluctuation between minimum 86.7 kPa to maximum 124.4 kPa with intervals of 10s between these extremes. a surface buoy, located near the pressure sensor recorded the wave height of 4.7m at about the same time. The chart datum at the location of the sensor is 8.5m and the height of the astronomical tides was determined to the 0.5m at the time of record. Due to the storm surge and wave set-up, the actual water depth during the storm is unknown. Use linear wave theory and answer the following:

Part 1- Estimate the water depth, wavelength and celerity at the time of record.

I need help to find the wavelength and celerity at given time.