In the coordinate plane, the points (-4,-8), B (-11, 1), and C (7, -3) are reflected over the x-axis to the points A, B', and C', respectively. What are the coordinates of A', B', and C?

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

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

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