Atrail is 10 miles in the first 1/2 mile jayden post 3 signs that describes local birds if the signs are an equal distance apart what is the distance between the second and third signs

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 (%)