help with homework for cs101, piechart?

Suppose that George, Sam, Betty, Charlie, and Suzie contributed $25, $15, $10, $5, and $20, respectively, to a colleague’s going-away present. (a) Create a pie chart of their contributions. Show your Matlab code and the pie chart. Note that title and legend must be shown. (b) What percentage of the cost was paid by Sam?

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