Mr. chen bought 3 pound of ham for $21. at this rate how much would 9 of ham cost

Which of the following shows the length of the third side, in inches, of the triangle below

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

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