N+2/5=4/5 can somebody solve this for me

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.

Which of the following graphs represents the function f(x) = 2^x

3.4a=57.8 what is the the value of a