Leila and her team are helping a company upgrade its website to be compliant with the current version of operating systems running on smartphones. At what stage of the web development process are they working? A.
design
B.
development
C.
testing
D.
maintenance
I will give brainliest

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.)