please show me step by step

Please solve problems 6,7,8 and 9 using Excel or Gams software. You can upload your assignment in the "PDF", "xlsx", or ".gms", format to Canvas. This is an individual-based assignment. The due date is Oct. 2nd, 12pm. 9. Two integer programming problems solved by GAMS are due as stated in the notes. The second problem is the following binary IP. Minimizez=x1+2x2s.t.x1+9x284x1+2x216x1,x2{0,1}