These cats really need to learn a lesson... IM SICK OF THEM EATING MY FAMILY

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get