Part A : Draw arrows on the graph below for RISE and RUN. *Remember to start at the left point.*

Part B :
Find the slope of the line from the graph above. *Don't forget to simplify!*

What does x = in this equation x+3+2x=x+5

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?

Ireally don't understand this, i'm really an idiot but i want to know how to figure this out. !