Can someone please help me? This is due today

I've posted all the questions I need answered here:

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Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet