The running back for the Bulldogs football team carried the ball 5 times for a total loss of 6 1/4 yards. Find the average change in field position on each run. Enter the average change as a simplified mixed number. The average change in fled position on each run was yards

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

Can someone me out here number 4 plz

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?