Can y’all help me ...

Answer is b=47
that angle is 180 so u put them in an equation
3b-6+b-2=180
4b-8 =170
add 8 to both sides
4b=188
divide by 4
b=47

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.