3. A lot of plastic straws find their way into the occurs each year App plastic straws will find their way into the oceans in a smugle you all
9.3x10 pounds, then how much plastic is enterng the Panth's oceam per your
straws? Show your calculation. Express your answer boths in se
standard decimal form.

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?