Forty-eight pens are packed in 4 boxes. How many pens are packaged in 9 boxes

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 (%)

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Hurry which expression is equivalent to 3√x^5y?