Explain how to write and solve the equation to solve the problem. bella saved enough money to buy 3 books. if each book cost $13, how much money did bella save?

Let x be be the amount of money Bella can buy.

Total amount Bella saved = 13x

Bella saved enough for 3 books.
x = 3

Total amount saved = 13(3) = $39

Answer : $39

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.