Where are the tutors at? I need help

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Need on this geometry question. explain how you did it.