If it takes 3,127 feet of computer cable to wire an office building, how much cable will be left if the wire is taken from a 5,000-foot reel?

What is the y intercept of f(x)=(1/2)^x?

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?

Rewrite so the subject can be y in the formula d=m-y/y+n