Please, provide solutioin in ecxel.

Two companies A and B sell two types of medicine against the flu. Company A advertises products on radio (A1), television (A2), in newspapers (A3), .... Company B, in addition to the use of radio (B1), television (B2) and newspapers (B3), also mails brochures (B4), .... Depending on the skill and intensity of the advertising campaign, each of the companies can attract a part of the clients of the competing company to their side. The matrix below characterizes the percentage of clients attracted or lost by the company. A. Determine the optimal advertising plan for companies A and B.

-5	-7	-4	8	9
1	3	6	7	0
1	2	7	5	1
9	5	4	7	8
-8	9	6	3	4
0	4	4	7	3
1	2	2	1	3

Needed:

-Mathematical model

-Feasible and optimal solution in excel.