Which expression could be used to find the missing value in x 3/5 = 4/7 ? Select one: 1. 3/5 * 4/7
2. 5/3 * 7/4
3. 5/3 * 4/7
4. 3/5 * 7/4

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 (%)