please answer both questions

9.10 Cite the phases that are present and the phase compositions for the following alloys: (a) 15 wt% Sn-85 wt% Pb at 100C (212F) (b) 25 wt% Pb-75 wt% Mg at 425C (800F) (c) 85 wt% Ag-15 wt% Cu at 800C (1470F) (d) 55 wt% Zn-45 wt% Cu at 600C (1110F) (e) 1.25 kg Sn and 14 kg Pb at 200C (390F) (f) 7.6 lbm Cu and 144.4 lbm Zn at 600C (1110F) (g) 21.7 mol Mg and 35.4 mol Pb at 350C (660F) (h) 4.2 mol Cu and 1.1 mol Ag at 900C (1650F) 9.17 Determine the relative amounts (in terms of mass fractions) of the phases for the alloys and temperatures given in Problem 9.10