To calculate the Hubble Constant from the observed data, the recessional velocity of 7500 km/s and the distance of 1.4×10^8 parsecs must be used in Hubble's equation, which states that recessional velocity equals the Hubble Constant multiplied by distance. The correct approach involves dividing the recessional velocity by the distance, ensuring proper unit conversion from parsecs to megaparsecs (Mpc). The confusion arises from the need to use division rather than subtraction in the calculation. Ultimately, the Hubble Constant can be determined by applying these principles correctly. Accurate unit conversion and understanding the equation are essential for solving the problem.
