Imagine you live only one mile from work and you decide to walk. if you walk four miles per hour, how long will it take you to walk one mile?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

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.