C=regular cost of one airline ticket 0.20c = amount of 20% promotional discount
3(c- 0.20c) = 330.
write a word problem

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.

Ithink ghe answer to this question is b just trying to others

Yes you do, so £1973.09 - £1473.50 = £499.59 so tim overpaid £499.59 .hope this ; )