1. Sketch the plane 2x + 3y 42 = 24 using intercepts. 2. A swimming pool company has a promotional budget of $87500. The budget is to be allocated to direct selling, TV advertising and newspaper advertising. The amount on TV advertising is $1000 more than three times the amount spent on newspaper advertising. The amount spent on direct selling in three-fourths of the total spent on TV advertising and newspaper advertising combined. How much of the budget should be given to each type of advertising? (Write and solve a system of equations). 3. The university theater collected $1300 from the sale of 450 tickets. If the tickets were sold for $2.50 and $3.50 respectively, how many tickets were sold at each prince? (Write and solve a system of equations)