What is the difference between an if-statement, an if-else statement, and an if-else-if statement? How are they similar? This is in computer science principles

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.)

How can you make your column headings stand out?

You're programming an infinite loop. what must you include in your code to prevent crashes? in roblox