Hi$,$ please help with questions $2\mathrm{.}1$ and $2\mathrm{.}2$

Question $2($Marks: $25)$Jack and Becker $($Ltd$)$ have two popular items that they produce and sell. The information below applies to these items:Product A Product K Selling price per unit R$90$ R$75$ Annual demand $($units$)1600018500$ Labour hours required per unit $1210$ Machine hours required per unit $86$Variable cost per unit R$64$ R$38$ Labour hours available per year $95600$ Machine hours available per year $58000$ Required:By means of the application of linear programming techniques $($Show all workings. Round your answers to two decimal places, where applicable$)$:$(7)$Q$\mathrm{.}2\mathrm{.}1$Determine the objective function.Q$\mathrm{.}2\mathrm{.}2$ Compute the linear constraints and determine the optimal product mix.$(15)$