pls give this a try

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

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.