HELP QUICK PLEASE If a trapezoid is 3 inches tall, it's longest base is 8 inches wide, and the area is 21 inches squared, what is the length of the missing base of the trapezoid?

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.

Idon’t know what the answer is i wish i could