PLEASE HELP - WILL GIVE 18 POINTS - EASY GEOMETRY

Which is f(5) for the function –2x2 + 2x - 3?

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?