This is due in 20 minutes. (100 points) if anyone is good at math, could you please help me? also, I get a lot of people that just write in crazy responses just for points so I'm BEGGING you to not do that. If you have ANY morals can u pls just not do it. You wouldn't want someone to do that to you. So please help? Thank you.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.