Exercise 2.4.7: Chat bot

Im doing this last minute and literally none of my neighbors or people that my dad works with use excel so if anyone could me make up an example

The initial tableau of a linear programming problem is given. use the simplex method to solve it. x 1 x 2 x 3 s 1 s 2 z 1 2 4 1 0 0 8 3 4 1 0 1 0 10 minus3 minus12 1 0 0 1 0 the maximum is nothing when x 1equals nothing, x 2equals nothing, x 3equals nothing, s 1equals3, and s 2equals0. (be sure to simplify to lowest terms if necessary.)

Which type of entity describes a fundamental business aspect of a database? a. linking b. lookup c. domain d. weak