Asquare has sides of x-.4.write an expression for the perimeter of that square. simplify the expression.

Your expression would end up being 4(x-4), which would simplify to 4x-16. Since a square has four equal sides, to find the perimeter you would just do the expression four times. Then you would apply the distributive property to find 4x-16. Hope this helps

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.