Who tried to find the first calculation of pi

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?