A man is standing on level ground 50 feet away from the wall of a building. He looks up at a window on the building. The angle of elevation to the bottom of the window is 28.5°. He then looks up at the top of the building. The
angle of elevation to the top of the building is 35º. What is
the approximate distance between the bottom of the
window and the top of the building?

Easy points boii. read it. ya. fresh

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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?