Which of the following situations best represents causation? a) if it is raining, then there are clouds in the sky b) when it is cold outside, hot chocolate sales increase c) if i train every day, i can make the track team d) if i study, i will get an a in physics

In the proof of the triangle angle sum theorem, you must draw an auxiliary line. which construction must you use to draw this line?

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books