Could someone rework this problem for me? I need some help.

9. 100cm3 of industrial-grade ethanol (C2H3OH; specific gravily =0.789 ) is mixed with 100 cm2 liquid water (maw=1g/cm2). The density of the resulting solution is found to be 0.927gicm3. Determine: a. The mass fraction of ethanol in the moture. [6 points] ] b. The mole fraction of ethanol in the mixture. [ 6 points] Molecularwt(1)numberofNoles12+12+5+16+1Hmoks=465/sol9 XE= ethnie1 =0.1956521739 c. The average molecular weight of the muture. [3 points ]