i need help with number 5-7

1. For the following TX diagram for a mixture of A&B, do the following: (1) Show vapor, liquid and vapor-liquid region (2) Show bubble-point and dew-point line V (3) Show tie line corresponding to 400F,600psia&40mole%A (4) Estimate boiling point of AV (5) Estimate boiling point of B (6) Determine equilibrium vapor mole % for a mixture of 40 mole % B at 6000F \& 600psia (7) Determine the composition of vapor and liquid phases at the conditions of part (6) above