The flower shop receives a rose delivery every 4 days. every 10 days, the shop gets other supplies, such as vases, ribbons, and cards. both deliveries arrived today, so trina is busy putting away the two orders. how many days will it be until the next time that both deliveries arrive on the same day?

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Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.