The length of a rectangle is four times its width. the perimeter of the rectangle is at most 130 cm. which inequality models the relationship between the width and the perimeter of the rectangle? 2w+2*(4w)≤130 2w+2*(4w)≥130 2w+2*(4w)< 130 2w+2*(4w)> 130

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 (%)