plz show the work & explain.

1. Give examples of an imperative programming language, and examples of a functional progran language 2. Why wouldn't you want to programming in machine code? List at least three reasons. 3. FORTRAN 77 introduced Logical Loop Control to the FORTRAN language. Explain what this meant. 4. Evaluate the following postfix expression: 5. How would you write the postfix expression, of the previous problem, in infix? 6. Given the grammar G (E, F,T), (a,b, (),+, x), E, P) (Note E, F, and T are nonterminals, a, b, ),+, x, are terminals, E is the starting nonterminal symbol) with production rules, P, as fol F (E) | al ( 1 ) 1+1 Give parse trees for each string: (b) (a+b) a 7. What is the difference between a right-most derivation and a left-most derivation? Explain and give examples S. List and explain two properties of the definition of a parse (derivation) tree