Scarlett is going to invest $7,900 and leave it in an account for 18 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Scarlett to end up with $12,300?

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Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

What is the interquartile range (iqr) of the data set represented by this box plot?