The vertices of a trapezoid are located at \left(1,-2\right),\left(3,-1\right) ,\left(3,-5\right)\left(1,-4\right) (1,−2),(3,−1),(3,−5)(1,−4). The trapezoid is dilated by a scale factor of 0.5, what will the coordinate points of the image be? (Keep the coordinate points in the same order when answering)

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?

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0