Simplify the Polynomial and please show your work so I can do more on my own. (btw ! will stand for rise to the power)
5xyx!3 + 7yxx!3 - 5x!2x!3 - 5x!2zx. + 3zx!3

Find the value of the cosine for angle a

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18