Can some one pls help with this

Rewrite the hyperbolic equation 4y^2 -9x^2 +54x-8y-113=0

Write an equation for the function that includes the points (2,100)and (3,100)

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?