Condense each expression. 100 points. five problems.
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Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

Find the roots of the equation below. x^2 - 6 + 9 = 0

Find the measure of angle c in the following triangle.