The second, fourth and sixth terms of an AP are x-1, x+1 and 7 respectively. find the 1) common Difference
2) first term
3) value of x​

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.

Idrk but i think u should figure out the n dia n then the units it will make it way more easier