Need help solving this question, for part a) could you show how it is plotted in excel, since the other parts of the question are interrelated. Thank you, if it is solved in full it was be much appreciated

At 20C, benzene et toluene form an ideal solution, whereas they form a nonideal solution at 120C. For this latter case, we have the following experimental data for the compositions and total vapour pressures: (a) Make a diagram for total and partial pressures as a function of composition, and compare with the ideal behaviour, knowing that the vapour pressures for the pure liquids at 120C are 2.98atm and 1.34atm for benzene and toluene, respectively. (b) Compute the activity coefficients and the activities for the solute and solvent for the solution with composition xBenzene(iiq)=0.587. Discuss carefully the conventions used for the computation of the activities. (c) Compute the Gmix for preparing the solution in (b)