Do you offer geometry help?

Look at attachment. has all info needed. need

Acylinder has volume 45π and radius 3. what is it’s height?

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 (%)