It demonstrates all the necessary procedure to reach the correct answers of each exercise and thus be able to obtain a partial or complete score.Part 1- Solve the following systems of linear equations using the substitution method.Part2- Solve the following systems of linear equations using the elimination method.Part3- Solve the following systems of linear inequalities using the graphical method.Part4- Find the point of balance in the following problems. Explain, in at least 2 complete sentences, what meaning this point has in each of the situations.Exercises of part 4;1. The Glamour company is about to introduce a new line of makeup products. They have determined that the production costs will be $5.75 per item, more they will have to use$14,628 for monthly fixed expenses.A. If the company sells each item for $14.95, find and explain the break-even point.2. The Americus theater has fixed costs of $12,017 per month and the variable costs are $3.50Per box office, if the owner decides to sell each of the box offices at $18.75 per person.A. How many lockers should you sell per month to guarantee the break-even point?3. During a football match, the snack place has put on sale a combo of hot dog, fries and soda at a price of $7.50. The owner registers that it has a production cost.In the premises of y - $2.40x + $714.A. Find the point of equilibrium. (2 pts.)B. If it is known that at least 165 combos will be sold, should the fixed price be changed to ensure that there are no losses?

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