PLEASE ANSWER ILL MARK YOU AS THE BRAINLIEST .Hamda and Nida of grade 9 together contributed AED10 towards RED
CRECENT to help millions of poor people around the world . They
represent the given data in a linear equation,
(a) x+y =100 (b) 2x +y =20
(c) x- y =0 (d) x+y =10

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.

Basic algebra equation. first set up your equation: divide out 9.and now you are left with 2x + 4 = 8.