Carl and Cameron are at a pool. Carl dives in and touches the bottom of the pool, 15 feet below the surface of the water. Cameron is standing on a diving platform 2 feet above the surface, waiting for his turn.
What is the vertical distance between Carl’s hand and Cameron’s feet

Which is the completely factored from of xy^3-x^3y

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?

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal