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The price of a coat increased from $78 to $92. what is the price increase percentage?

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180