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And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?