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Help me please

Which of the following expressions are equivalent ?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?