This data shows the ages of everyone on the softball team at the recreation center. 16, 17, 16, 18, 19, 15, 14, 17, 13, 14, 17 What is the IQR (interquartile range) for this data?

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

We just started the introduction into circles and i have no idea how to do this.

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.