can you please solve this statitstical equation for me showing the work/

a medical student took a standardized achievement test. In a test population of medical students, the scores were normally distributed. On this test, the mean score is 500 and the standard deviation is 100. The students; reported score was 713.
Calculate the student's z-score. In words, what is the interpretation of the z-score? if this student is in a class of 200 and scores are normally distributed, how many students in the class would be expected to equal or surpass this students score? Round to the nearest whole student.
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