At 61°F, a certain insect chirps at a rate of 76 times per minute, and at 67°F, they chirp 124 times per minute. Write an equation in slope-intercept form that represents the situation.

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Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.