Please solve this as soon as possible..

It is easy linear optimization problem...Please solve this as soon as possible...

Thanks..

Although social networks have modified the way of advertising, traditional media are still being used to reach all possible audiences. The newspaper continues to have a captive audience and to reach it you must invest. A new restaurant wants to advertise in two local newspapers: The sun and the day. Each ad in the newspaper El sol is seen by 70,000 clients from group A, 40,000 from group B and 20,000 from group C. Each ad in the newspaper La Jornada is seen by 10,000 clients from group A, 20,000 from group B and 40,000 from group C. Each advertisement in the newspaper El sol costs $ 1000 and each advertisement in the newspaper La Jornada costs $ 800. The restaurant wants its ads to be read by at least 2 million people from group A, 1.4 million from group B and one million from group C

a) Declare your decision variables

b) Write down all the limitations, restrictions and conditions that exist in the form of inequalities.

c) I proposed the objective function

d) Plot the feasible region

e) Solve with the corner method

f) Under these conditions, determine how many advertisements should be placed in each newspaper in order to achieve your advertising goal at the least cost.