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25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180