13 divided by 321 plz anser

Algebra 1: unit 6 part 2 of test a) the table shows a linear function. x 0 1 2 3 5 13 21 29 37 45 53 (a) determine the difference of outputs of any two inputs that are 1 unit apart. show your work. (b) determine the difference of outputs of any two inputs that are 2 units apart. show your work.

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Can someone me and do the problem plz so i can understand it more better