How many weeks will it take to reduce time to complete 5k

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 (%)

Draw a scaled copy of the circle using a scale factor of 2

What is the average diastolic blood pressure for adults