How many solutions does the system have? use elimination x+3y=13 5x=6y=38

There is one solution to that system and it is 3, 4

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.

The answer is 6 weeks